The Green Revolution of the 21st Century

France, Spain, the United States, China:

what the comparison teaches us about the real profits to be made.

Yves Nicolas | Consultant in Functional Ecology | yvesnicolas.com | France, Morocco

Newsletter Eau : Realite et Solutions (Water: Reality and Solutions), Episode 4 | August 2026

This episode is longer than the previous ones. It is deliberately so, and for one reason only: a partial answer is an answer that can be captured and dismissed. To be politically unassailable, a diagnosis must come with all of its solutions, with no exception of soil, terrain, climate or economic situation. That is what you will find here. If some passages feel dense, the glossary at the end of the article is there for you, and so is the final note.

Act I: The mirror of disaster. What the bison, the prairie and the Dust Bowl teach us about what we are in the process of losing.

Act II: The anatomy of an agronomic suicide. What land consolidation, soil crusting and falling water tables document about the French trajectory.

Act III: The yield of regeneration. What China, INRAE and forty centuries of peasant practice teach us about what works, on every type of soil, without exception, from the seed to the plate.

This text was written to circulate. If you work in agriculture, banking, insurance, public health, land planning or politics, and if you know one person who should read it, pass it on without waiting. Ideas that change systems never do it alone.

ACT I. The mirror of disaster.

There is something in the earth that the eye does not see and that the plough does not respect. Something as real as a muscle, as fragile as a web of silk, and as indispensable as a lung. It is called the clay-humus complex. It is what makes a soil alive. It is what Kansas destroyed between 1900 and 1930. It is what Spain is losing today. It is what France is squandering without seeing it.

To understand what happened in the American Great Plains, you must first understand what a prairie soil was before man touched it. Not at the surface. At depth. One metre beneath the feet of a bison grazing the buffalo grass of Kansas in 1880, something extraordinary was happening. The roots of this native grass sometimes descended three or four metres into the soil. Not only to look for water. To manufacture humus. Each season, a fraction of these roots died and decomposed in place, deeply buried, feeding a microbial biomass of almost inconceivable density. In a single gram of that prairie earth, there were more bacteria than human beings on the planet. These bacteria, these fungi, these protozoa did not live in disorder. They formed a system. The bacteria broke down organic residues into ever simpler fragments. The mycorrhizal fungi colonised the living roots and supplied them with minerals in exchange for sugars. The earthworms ingested the earth, mixed it with organic matter and returned it as stable aggregates, those small crumbs that soil scientists call crumb structure and which are the visible signature of a healthy soil.

These aggregates are the secret of everything. Between them, they leave spaces, pores, galleries of varying sizes. The widest, the macropores, let rainwater infiltrate quickly without running off. The finest, the micropores, hold that water by capillarity and release it slowly to the roots during dry periods. A well structured prairie soil is a sponge of a sophistication no engineer has ever managed to imitate. It absorbs the excesses and offsets the deficits. It turns brutal rain into slow recharge and passing drought into available reserve.

But this system did not work alone. It had a living engine at the surface: the bison. Sixty million bison roamed the Great Plains at the start of the 19th century. Their droppings deposited a considerable quantity of fresh organic matter, rich in nitrogen, phosphorus and intestinal micro-organisms that restarted the soil's biology at every passage. Their trampling worked the soil, pressed plant residues into the first centimetres, created micro-depressions that held rainwater long enough for it to infiltrate. Their grazing stimulated root regrowth at depth. The bison did not consume the prairie. It fertilised it by grazing it. When the settlers killed the bison and ploughed the prairie, they simultaneously removed those three functions that this animal had been performing for free for millennia.

How carbon enters the soil and why it stays there.

Everything begins in the leaf. When a plant photosynthesises, it captures CO2 from the atmosphere and turns it into sugars. A fraction of these sugars travels down to the roots and is exuded directly into the soil to feed the mycorrhizal fungi and the bacteria. The fungi transform these sugars into a sticky substance called glomalose, which binds to the mineral particles of the soil to form stable complexes that can persist for decades, sometimes centuries. This glomalose represents 15 to 20% of the total organic carbon of healthy agricultural soils, which makes it one of the most important and most neglected carbon reservoirs on the planet. In parallel, when roots die at the end of the season, they decompose in place into stable humus. One gram of humus can hold up to six grams of water by capillarity and store carbon for hundreds of years if the soil that shelters it is not disturbed.

The mesh of millions of pathways to the depths.

This biological network builds something even more precious for understanding the water crisis: a mesh of millions of pathways to the depths. Living roots descend, branch, taper. Dead roots, as they decompose, leave minuscule galleries, conduits a few tenths of a millimetre wide. Earthworms drill their vertical galleries down to two metres deep. Fungi weave their hyphae through every available space. When a raindrop touches a living soil, it finds the entrance to a network. It rushes into the macropores, finds an earthworm gallery, descends, forks into the path of an old root, descends again. Part of the water is captured on the way and held by capillarity as a water reserve for the roots. The other part keeps descending to the water table. That is the water that recharges the aquifer. Not the water that runs off. Not the water that evaporates. The water that had the time to cross the soil along its millions of small biological pathways.

An unploughed prairie soil can infiltrate up to 200 millimetres of water per hour. A compacted cereal loam soil, depleted of organic matter, infiltrates 2 millimetres per hour. Sometimes less.

These two figures in the same unit say everything there is to know about the water crisis in France. The difference between 200 millimetres and 2 millimetres per hour is the difference between an aquifer that recharges and an aquifer that empties. It is the difference between 93% of French water tables falling simultaneously on 1 July 2026 and a territory whose underground reserves hold from year to year. A factor of one hundred. Between the living soil and the degraded soil, there is a hundredfold factor of infiltration. This is not an agronomic nuance. It is a hydrological chasm.

Then came the ploughshare.

Ploughing accomplishes two destructions simultaneously. The first is mechanical: turning the soil breaks the earthworm galleries, fractures the channels of dead roots, tears the fungal filaments. This mesh of millions of pathways to the depths disappears in a few hours under the passage of a ploughshare. Infiltration capacity collapses. From 200 millimetres per hour to 2 millimetres per hour in a few seasons of repeated ploughing. The second destruction is biological: turning the soil exposes the deep horizons, rich in stable humus, to air and sunlight. Aerobic bacteria decompose in a few weeks what decades had built. The carbon stored in glomalose and in humus leaves for the atmosphere as CO2. The aggregates lose their cohesion. The soil falls apart.

The stones are not rising. It is the soil that is sinking.

There is, in fields ploughed for decades, a phenomenon everyone has observed and almost no one has correctly interpreted. The stones come up. The stones are not rising. It is the soil that is sinking.

On a soil whose biological mesh has been destroyed by repeated ploughing, rain runs off at the surface, carrying with it the finest particles, the clays, the silts, the fragments of humus. The stones, for their part, are too heavy to leave. They stay in place while the soil around them thins progressively through surface erosion. Year after year, the general level of the soil drops by a few millimetres. The stones end up appearing at the surface not because they rose, but because the soil sank around them. What the stones appearing in your fields are telling you is that your soil is leaving. Not in a visible catastrophe. In a silent haemorrhage, a few grams per litre of runoff water, a few millimetres per season, a few tonnes per hectare per year.

That is the state in which Kansas awaited the drought of 1930. The dust storms that darkened the sky over Chicago in 1934 and 1935 were not earth lifting. They were humus leaving. What finally stopped the Dust Bowl was not the rain coming back. It was a conscious political and agronomic decision. The agricultural New Deal financed the planting of two hundred million trees as windbreaks on thirty thousand farms. It subsidised direct seeding, permanent soil cover, the restoration of prairies. And progressively, the 2 millimetres of infiltration per hour became 20 again, then 80, then 150. The biological mesh rebuilt itself. The pathways to the aquifers reopened. It is not magic. It is biology. And it is reproducible.

The forest and the animal: when controlled density replaces public spending.

An animal in a forest at controlled density is not a destroyer of forest biology. It is its free maintenance. It grazes the scrub that constitutes the fuel of wildfires and that mechanical clearing treats at great cost. It tramples logging residues, pressing them into the first centimetres of the soil. Its droppings permanently inoculate the forest litter with a microbial biomass that accelerates the decomposition of woody residues into stable humus. This system, which agronomists call silvopastoralism, is the system of the Spanish dehesa and the Portuguese montado, those landscapes of oaks dotted with Iberian pigs and sheep that have maintained the fertility of their soils for centuries without ploughing and without fertiliser. And these are precisely the landscapes that the Atlas de la Desertificacion de Espana identifies as the most resilient areas against desertification in the Iberian peninsula. Where the dehesa survived, the soil survived.

But silvopastoralism does not only produce a living soil. It produces something that intensive off-soil livestock farming will never be able to produce: nutritionally superior meat. The Omega-6 to Omega-3 ratio in the meat of an animal raised in silvopastoralism sits between 2 to 1 and 3 to 1, the ratio cardiologists consider protective. In the meat of an animal fed industrial off-soil rations, that same ratio soars to between 10 to 1 and 20 to 1, identified by medicine as highly pro-inflammatory. Tree leaves and shrubs contain tannins that slow biohydrogenation in the rumen, protecting the Omega-3s and passing them directly into the animal's muscle. The tree acts as a protective shield for the Omega-3s.

The case of the forest pig is even more striking. Fed on acorns, chestnuts and beechnuts under the oaks, its fat is saturated with oleic acid, exactly the same molecule that makes olive oil's worldwide reputation. That is precisely why a jamon iberico de bellota sells for between two hundred and five hundred euros per kilo on the world's luxury markets, while an industrial off-soil ham trades at the Chicago exchange price. What silvopastoralism produces is not a meat. It is an alicament, a food-medicine, whose properties cannot be obtained in a laboratory. They are obtained in a forest, with time, plant diversity and animals that live as their biology commands.

On 24 July 2026, near Madrid, a violent fire spread to a 240 hectare nature reserve. The neighbouring plots burned entirely. The reserve resisted. Not thanks to water bombers. Not thanks to mechanical firebreaks. Thanks to eight European bison that had been regularly grazing the grasses and scrub since their introduction in 2015. The owner called his bison the best firefighters in Spain. This is not an anecdote. It is a proof of principle in real conditions, dated, located, verifiable, a few weeks before the publication of this article.

ACT II. The anatomy of an agronomic suicide.

France did not have a Dust Bowl. It had something more insidious: a brilliant modernisation, applauded, awarded, that produced exactly the same biological result in sixty years, but so slowly, so cleanly, so officially that nobody called it a disaster.

In 1950, France came out of the war with the memory of hunger. The agricultural orientation law of 1960 set a necessary objective: modernise, mechanise, enlarge, produce. In thirty years, the physical productivity of agricultural labour was multiplied by thirty. France became, at its peak, the world's second largest exporter of agricultural products. This result is real. It fed generations. It must not be denied. But in the race for productivity, nobody looked at what was happening beneath the plough pan.

The successive waves of land consolidation from the 1960s to the 1980s erased more than half of France's hedgerow network. In a few decades, the sponge landscape became a funnel landscape. A modern tractor with its seeding train, or a combine harvester, exerts a pressure of 150 to 200 kilopascals on the soil when passing over wet ground. The earthworm galleries are crushed. The plough pan forms. Above it, rain accumulates and runs off. Below it, the aquifer no longer receives anything.

The GIS Sol documents the result: in the great cereal plains such as the Beauce or the Paris Basin, organic carbon stocks have fallen to between forty and fifty tonnes per hectare in the first thirty centimetres. Earthworm biomass has dropped by 50% compared with permanent grassland. Nearly 18% of the agricultural soils of metropolitan France now suffer from crusting: the formation of an impermeable surface crust under the impact of raindrops on soils stripped of organic matter. On a crusted soil, you no longer measure 2 millimetres of infiltration per hour. You measure zero.

The Bureau de Recherches Geologiques et Minieres publishes the state of French water tables every month. Its bulletin of 7 July 2026 says this: 54% of aquifer observation points are below the monthly normals. Across the whole national territory, 93% of levels are falling simultaneously. This figure is the direct result of what has just been described. A living soil infiltrates up to 200 millimetres per hour towards the aquifers. A dead soil infiltrates 2. A crusted soil infiltrates zero.

The Beauce aquifer, the largest unconfined aquifer in Western Europe, supplies drinking water to millions of people. On 1 July 2026, it still shows moderately high levels. But its level keeps falling. Its renewal flow has been broken by decades of degradation of the soils above it. Like a bank account you draw from without ever paying in. The day of reckoning will come.

Official balance sheets ignore an entire dimension of the water plunder. One kilo of exported irrigated maize carries with it several hundred litres of water drawn from aquifers and rivers already under summer stress, what hydrologists call virtual water. The Beauce aquifer, which this article compares to a bank account drawn on without ever being replenished, in reality finances exports at world market prices that do not include the replacement cost of that water. We are selling our groundwater at the price of grain. And nobody enters it in any balance sheet.

The Atlas de la Desertificacion de Espana documents, province by province, where this trajectory leads: Murcia 91% of degraded territory, Albacete 84%, Valladolid 79%, Madrid 68%. France looks at this map from north of the Pyrenees thinking the problem is Spanish. It is not a Spanish problem. It is our future if we do not change trajectory.

ACT III. The yield of regeneration.

China did this calculation before us, and the journal Science published the demonstration on 12 February 2026. The Yangtze, the world's third river by flow, had lost in seventy years what the American Great Plains had taken thirty years to destroy: its biomass, its diversity, its emblematic species. Since the 1950s, intensive commercial fishing, dams, industrial pollution and the artificialisation of the banks had reduced fishery yields to a quarter of their historic level, erased 135 species from recent inventories and driven two emblematic species, the river dolphin Lipotes vexillifer and the Chinese paddlefish Psephurus gladius, to definitive extinction. In 2021, China took a decision few governments would have the courage to take: banning all commercial fishing across the entire basin for ten years, recalling 111,000 boats, retraining 231,000 fishermen, investing 2.74 billion dollars. In five years, total fish biomass more than doubled, rising by a median of 209% across 57 measured river sections. Species richness increased by 13%. The Yangtze finless porpoise, the river's last surviving freshwater mammal, went from 445 individuals in 2017 to 595 in 2022, a one-third increase in five years. The researchers of the Chinese Academy of Sciences who published these results in Science measured, with structural equation models, that the halt in fishing pressure is the main driver of this turnaround, with the restoration of water quality and riparian habitats playing a complementary but secondary role. Seven decades of decline reversed in two years of measurable trend. What this result demonstrates is not specific to rivers. It demonstrates that when you stop destroying a living system and give it back the minimal conditions to function, it rebuilds itself along dynamics nobody needs to program. Biology knows what it has to do. The only question that remains open is always the same: do we accept to give it the time to do it.

There is, in the debate on the agricultural transition, a calculation error that nobody ever corrects publicly because it suits too many people. The gross revenue of the intensive model is compared with the gross revenue of the regenerative model, the former is found to be higher, and the conclusion is drawn that the transition is an economic loss. This reasoning is false. It compares gross revenues without ever comparing the costs that produce them, nor the destruction the model generates and that the community pays in its place.

What the current model really costs you.

A seventy-hectare Beauce farm in intensive field cropping today produces between 150,000 and 200,000 euros of gross revenue per year. But it produces it at the price of costs that the standard balance sheet never presents in full. Inputs first: between 400 and 600 euros per hectare per year, that is between 28,000 and 42,000 euros per year over seventy hectares, a rising expense for a declining result. Irrigation next: between 5,000 and 10,000 euros per year. Then climate insurance: the crop insurance premium has risen by 40 to 60% in ten years. Added together, these costs represent between 70 and 80% of gross revenue. The real net margin sits between 20,000 and 40,000 euros per year.

The invisible price of destroying the living world.

Neonicotinoids first. These systemic insecticides, incorporated directly into the seed or applied as soil treatment, do not target only aerial pests. They permeate the whole plant, from the root tips to the pollen, and persist in the soil for months, sometimes years. Their toxicity is systemic and touches the whole chain of life in contact with the plant or with the treated earth. Earthworms that ingest this earth suffer documented sublethal effects: altered burrowing behaviour, reduced reproduction, disrupted capacity to form the aggregates that constitute macroporosity. Springtails, those micro-arthropods that decompose organic matter and constitute a fundamental link in the soil food chain, are directly affected. Ground beetles and rove beetles, those predatory beetles that hunt on the ground and constitute the first biological rampart against pests, are contaminated by ingesting their prey or by direct contact with the earth. The aquatic invertebrates that form the base of the food chain of rivers and streams are decimated at concentrations far below current regulatory thresholds, through leaching into aquifers and surface waters. And wild bees, the great majority of whose European species nest in the ground rather than in hives, are directly exposed through the contact of their nest with treated earth, independently of any contact with pollen or nectar. It is a mistake to see in this an insecticide that targets a pest. It is a molecule that restructures the entire biology of soil and water in the wrong direction.

The pollination services rendered free of charge by wild insects to European agriculture are valued at between 14 and 22 billion euros per year. This cost appears in no farm balance sheet. Glyphosate acts by inhibiting an enzyme present not only in target plants but also in soil bacteria. Its degradation produces AMPA, a metabolite even more persistent than the parent molecule, whose toxicity to aquatic organisms is documented. The word herbicide suggests an action that disappears after use. The reality is a molecule that durably restructures soil biology in the wrong direction.

Between 50 and 70% of active pharmaceutical molecules come directly from the living world. Penicillin comes from a soil fungus. Taxol, one of the most powerful anticancer drugs known, comes from the bark of a yew. Metformin, the world's most prescribed drug against type 2 diabetes, comes from a grassland plant. Every species that disappears takes with it a unique chemical heritage that no laboratory will ever synthesise, because it does not even know it exists. A living soil is not only an agronomic infrastructure. It is a pharmacy we are closing before we have even catalogued its contents.

The health bill: when Social Security subsidises agro-industry.

The race for physical yield has selected varieties and practices that swell plants with water and starch, at the expense of their nutritional density. When agro-industry boasts of producing cheap food, it lies by omission. The food is not cheaper. Its cost has simply been transferred from the supermarket receipt to our Social Security contributions and our taxes. Marc-Andre Selosse puts it bluntly: 1 euro of food purchased costs us between 1 and 2 euros of negative externalities.

The theft of the peasant heritage.

Normandy butter, camembert, comte, roquefort, Bayonne ham: these products are not industrial recipes invented in a laboratory. They are peasant know-how, built over generations, anchored in specific territories, in local animal breeds, in lactic bacteria specific to a terroir. They were captured, standardised, industrialised and branded by large agri-food groups that used their fame as a commercial lever while progressively emptying their content of the biology that made their value. This transfer of value was never compensated. The peasant never received anything in return for this immaterial contribution.

Bringing infiltration from 2 millimetres back towards 200 millimetres. That is the objective. Here are the levers.

A soil permanently covered by cover crops between cultures, by Ramial Chipped Wood spread at the surface, begins to build its aggregates again. The mycorrhizal fungi, whose networks are no longer torn apart, progressively extend their hyphae. Glomalose accumulates. The aggregates rebuild. The macropores reopen.

For areas exposed to extreme heatwaves, inoculated biochar must be buried in the cool horizons by localised drilling without turning the soil, at a minimum depth of 15 centimetres. Mesophilic soil bacteria and mycorrhizal networks begin to suffer functional damage above 35 to 40 degrees Celsius and significant mortality above 45 to 50 degrees. During extreme heatwaves, surface horizons can reach 60 to 70 degrees on bare soil. These temperatures are lethal to almost all surface biology. From 15 centimetres down, the soil's thermal inertia considerably dampens these peaks. Inoculated biochar buried at this minimum depth keeps its biology intact, survives the heatwave, and progressively recolonises the surrounding matrix upwards as soon as conditions become favourable again. Localised drilling without turning the soil, at more than 15 centimetres, is not a technical constraint. It is the condition that makes the system hold.

Amazonian Terra Preta is the oldest and most incontestable demonstration of what biological carbon accomplishes when it is entrusted to a living soil. These extraordinarily fertile black earths are found on former pre-Columbian settlement sites, as islands in the middle of the naturally sterile yellow earth. They were built up by generations of surface deposits, kitchen waste, charcoal from hearths, broken pottery, progressively mixed and drawn downwards by earthworms and soil fauna. They can reach two metres deep. And they are still exceptionally fertile centuries after the abandonment of the villages that produced them. What Terra Preta proves is the century-scale stability of biological carbon when it is integrated into a living soil and progressively drawn down by soil fauna. The localised drilling we recommend accelerates and optimises this natural process by taking the inoculated biochar directly down into the cool horizons, where biology survives contemporary heatwaves.

This grid-drilling technique is intended for perennial plantations, agroforestry systems, hedgerows and the reconstruction of difficult soils, wherever the biochar must cross entire summers under lethal surface temperatures. In cereal field cropping, the calendar works for us: biochar spread at the surface in autumn with the sowing of winter cereals colonises its biology during the cool, wet months, and is already integrated into the first horizons when the summer heat arrives, after harvest. And this application is not a one-season investment. The carbon structure of biochar does not degrade, that is the lesson of Terra Preta. During heat peaks, the biology it hosts goes dormant or takes refuge in the deepest micropores of the grain, which stay cooler and moister than the surrounding matrix. At every return of the wet seasons, colonisation resumes where it left off, and every year the earthworms draw it a few millimetres deeper, until it reaches by itself the horizons where the heat will never touch it again. A biochar application remains biologically active for years, and its value increases as it descends. Two methods, two calendars, one single logic: never expose the biochar's biology to the temperatures that destroy it, and let time work for it.

A well designed hedge, hardy fruit trees, nitrogen fixers, pollarded trees, with its wild strip of one to three metres between it and the crop, does not take productive area. It creates it. The parasitoid micro-wasps of the genus Aphidius lay their eggs directly inside living aphids. A lacewing larva can devour up to 500 aphids during its larval development alone. These auxiliaries need no input. They need a permanent habitat, which the wild strip provides them for free. The sugar beet crisis of 2026, with aphids carrying yellows disease and weevils in climatic expansion, illustrates exactly what the current system produces when these habitats are destroyed.

The rule of 30% of woody biomass produced on the farm, distributed as hedgerow network, closes the carbon cycle at farm scale without external dependency. Returning 10% of the area to restored natural wetlands transforms the brutal runoff the soil can no longer absorb into slow infiltration towards the aquifers.

The closed energy loop: from biochar to the tractor's fuel.

In France, an estimated 1.5 million tonnes of plant biomass are burned in the open air every year: green waste, vine shoots, pruning residues. This biomass leaves as CO2 without capturing carbon, without producing useful energy, without enriching a single soil. The same biomass, passed through pyrolysis, would produce 300 million litres of synthetic fuel per year while generating between 375,000 and 450,000 tonnes of biochar ready to be buried. Those 300 million litres represent 15% of the off-road diesel consumed by all of French agriculture.

The energy loop closes at two scales. At the scale of the farm or cooperative, the syngas produced during pyrolysis directly feeds a generator. At the industrial or regional cooperative scale, the bio-oil can be sold to regional biorefineries that will transform it into synthetic biofuel through processes such as Fischer-Tropsch, a centralised biorefinery technology suited to a cooperative or industrial scale, out of reach of a farmyard installation.

The surplus syngas that pyrolysis produces beyond the farm's immediate needs does not have to reach a biorefinery to be valorised. It can be converted by electrolysis into hydrogen, the only energy vector storable at farm scale without dependency on lithium batteries, whose mining reproduces exactly the extractive model this transition seeks to abandon. Hydrogen produced locally from the syngas of agricultural biomass is a durable, transportable energy reserve, convertible into electricity according to seasonal needs. It is agricultural energy sovereignty carried to its logical conclusion.

The hedge that protects the crop provides, through its pruning, the biochar that regenerates the soil and the fuel that moves the tractor. It is a closed loop.

Banning the open-air burning of agricultural and forestry plant waste is not an additional ecological constraint. It is the condition for this resource to exist.

What France could capture if it decided to act.

One kilo of biochar contains on average 80% pure carbon. The calculation is incontestable: 1 kilo of buried biochar sequesters 2.93 kilos of CO2 equivalent. Over 5 million hectares treated as a priority, the biochar line alone would capture 14.65 million tonnes of CO2 equivalent per year. Permanent cover crops over 10 million hectares capture 5 million tonnes per year. The reinstallation of 200,000 kilometres of hedges contributes 500,000 tonnes per year as it ramps up. The restoration of 1.4 million hectares of wetlands adds 2.8 million tonnes per year.

Consolidated total: about 25 million tonnes of CO2 equivalent captured and stored every year on 50% of France's agricultural area in progressive transition. That is the equivalent of 6.6% of annual national emissions.

Capturing those 25 million tonnes through direct air capture technology would cost between 10 and 25 billion dollars per year. Companies such as Climeworks charge between 400 and more than 1,000 dollars per tonne, an industry massively subsidised by state aid. On the voluntary carbon market, a credit from agricultural land management trades at between 10 and 20 dollars per tonne. Forty to one hundred times cheaper. And that credit simultaneously produces food, filtered water, biodiversity and an income for the farmer.

We are about to pay engineers between 400 and 1,000 dollars to bury a tonne of carbon in dead rock. We refuse to pay farmers 50 dollars to entrust that same tonne to living soils that will work it, multiply it and feed us with it for decades. This contradiction is not technical. It is political.

The financial circuit that makes all of this possible.

The CAP today pays about nine billion euros per year to French agriculture without any genuinely binding conditionality. Reversing this logic does not require one additional euro. It requires progressively conditioning every euro of CAP on a measured and verified regenerative practice. Five percent the first year. Ten the second. Up to the target thresholds over ten years. The farmer is never penalised. He is progressively incentivised up to the point where the new model is more profitable than the old one. The carbon tax levied on polluting industries provides the additional financial flow. It makes those who degrade pay to remunerate those who regenerate. Voluntary carbon markets allow the farmer to directly monetise the carbon he stores. Payments for environmental services transform his status: he ceases to be only a producer subject to the vagaries of world prices and becomes a manager of the territory, remunerated for the services he renders to all.

The gap between the urgency and the politics: what the Senate documents without resolving it.

In July 2026, Christine Lavarde, senator for the Hauts-de-Seine and special rapporteur of the Senate Finance Committee, filed a report whose title alone sums up the state of French biodiversity policy: Biodiversity, the strategy that never received the means of its objectives. She documents there, with a rigour that must be saluted, that public spending unfavourable to biodiversity far exceeds the credits devoted to preserving it, that the multi-year financial trajectory defined in 2022 was not respected, and that France devotes 1.9 billion euros per year to its biodiversity strategy while spending several times that amount to finance the practices that destroy what it claims to protect.

This report makes the right diagnosis. It stops at the threshold of the solution. Its nine recommendations are all recommendations of budgetary framing and financial programming. None of them concretely names the practices that would allow these unfavourable expenditures to be turned into profitable investments. It is precisely this void that this article seeks to fill.

For the financial instruments necessary for this transition already exist in the European monetary and regulatory architecture. Christine Lagarde, president of the European Central Bank, has made the green taxonomy and the integration of climate risks into bank balance sheets a central axis of the euro zone's monetary policy. Living soils, productive hedgerows, restored wetlands, buried biochar sequestering 2.93 kilos of CO2 per kilo buried, are precisely the real assets this taxonomy seeks to identify, certify and finance at scale. The regeneration of European agricultural soils is not only an agronomic policy. It is a programme for issuing real green assets, non-relocatable, whose yield improves with time, which the ECB has been seeking for years without yet finding the operational instruments to deploy them at territorial scale.

The revolution the political class has not yet seen.

The French political class, in its great majority, looks at agroforestry, biochar, productive hedgerows, soil regeneration as sympathetic but marginal practices. Peasant tinkering from another era that cannot constitute a serious economic programme. This gaze reveals a conception of growth and progress dating from 1960 that has never been updated. That model was a real and necessary growth lever at a time when its biological and climatic consequences were not known, when food security took precedence over any other consideration, and when soils seemed an inexhaustible resource. Nobody can be held responsible for not having seen in 1960 what sixty years of science brought to light afterwards. But to continue in 2026 to steer agricultural policy with the instruments and convictions of 1960, after the reports of the GIS Sol, the BRGM, the CSIC, the IPCC and the Senate Finance Committee itself have laid down the diagnosis with a precision that leaves no more room for doubt, is no longer ignorance. It is a choice. And that choice has a cost the community pays a little more dearly every year.

What this gaze does not see is that the farmer who drills holes in his field to sink inoculated biochar, who plants mixed hedges with fruit trees and nitrogen fixers, who leaves a wild strip between the hedge and the crop, is deploying simultaneously seven new revenue streams where he had only one. What this gaze does not see is that biomass transformed into biochar by pyrolysis is a carbon sequestration technology recognised by the IPCC, between forty and one hundred times cheaper than the billions invested in industrial DAC and infinitely more productive in positive externalities. What this gaze does not see is that the productive hedgerow is a simultaneous energy, food, hydrological and biological infrastructure that the State pays for elsewhere, in other forms and at costs beyond all comparison.

The economists who have refounded growth theory over the past twenty years have seen what the political class has not yet seen. They have validated that green, regenerative growth founded on natural capital is the next great wave of prosperity. Mariana Mazzucato has documented that all the great waves of economic innovation were preceded by massive public investment in technologies the market alone would not have developed. Nicholas Stern established the principle that the cost of climate inaction is always higher than the cost of preventive action, a principle of which the macroeconomic assessment presented in this article is the concrete demonstration applied to agricultural soils. Kate Raworth has demonstrated that growth which destroys its own natural substrate is not growth but deferred destruction booked as profit. Jeremy Rifkin has theorised that the next great wave of growth will be biological, distributed and regenerative. And Pavan Sukhdev, author of the TEEB report for the United Nations Environment Programme, was the first to quantify the economic value of ecosystem services at world scale and to demonstrate that their destruction is a real economic loss that appears in no national GDP. These economists are not talking about ecology. They are talking about badly kept national accounts, unrecorded real assets, founding investments that only public power can initiate.

In France, the experimental network Res0Pest, led by INRAE across nine sites for ten years, demonstrated something many considered impossible: cropping systems without any pesticide, including without seed treatment, can reach yields comparable to conventional farming and higher than organic, while generating a positive net farm income. On sugar beet at Estrees-Mons, the pesticide-free yield was double what was anticipated and equivalent to the region's conventional yield. On wheat, the results sit between organic and conventional, exactly where the models predicted failure. After ten years, no significant increase in pests or pathogens was observed on any of the nine sites. Diana Ortiz-Vallejo and her colleagues, who publish these results in Plant Disease in July 2026, conclude that pesticide-free cereal systems are technically and economically viable under certain conditions. It is a rigorous scientific validation of part of what this article demonstrates.

But Res0Pest stops halfway, and its own results show it. The network keeps synthetic nitrogen fertilisers and practises mechanical soil work, alternating ploughing included. And the experimenters themselves acknowledge, after ten years, that they have not found the right dose of synthetic nitrogen: too little, and yield drops; too much, and weeds explode, because the excess of soluble nitrogen favours precisely the fast-growing plants at the expense of the crops. This is not a problem of technique. It is a problem of diagnosis. The network did integrate the surface agroecological infrastructures, hedges, flower strips, corridors, which constitute the first layer of biological regulation. But it did not take the next step: neither RCW, which rebuilds stable humus through the basidiomycete fungal pathway, nor biochar inoculated with mycorrhizae and nitrogen-fixing bacteria, which recolonises the deep horizons of the soil, nor direct mycorrhizal inoculation at sowing, which rebuilds the mineral exchange network between the plant and the soil. These are precisely the three levers that make it possible to break free from the synthetic nitrogen fertilisation that Res0Pest failed to dose correctly in ten years. Without the rebuilding of the mycorrhizal network, the plant remains dependent on external soluble inputs. With it, the plant draws by itself from a mineral reservoir the soil replenishes permanently. Removing pesticides without restoring the soil biology that naturally regulates weeds and pests is treating the symptom without touching the cause. And the performance equation Res0Pest measures remains incomplete: it does not integrate the health bill we detailed above, the one that Social Security, health insurance funds and local authorities pay in place of farm balance sheets. Res0Pest involuntarily demonstrates, through its own limits, what the restoration of the clay-humus complex makes possible where synthetic chemistry, even reduced, cannot reach: rebuilding the internal biological regulation that makes inputs, all inputs, progressively superfluous.

What the conventional model really costs. The bill never presented to the farmer.

[Image: Projection of the cost of inaction vs the benefits of action, France 2026-2051. Sources: BASIC 2024, CGDD, Sytra, FIVP, GIS Sol, BRGM. Linear extrapolation of documented annual costs.]

The accounting of industrial agriculture rests on an intellectual fraud never clearly named. The price of wheat per tonne, the cost of inputs per hectare, the gross margin per farm: all these figures are real, verifiable, discussed in every chamber of agriculture in France. But they do not contain the health bill that the model generates and that the community pays in its place. This bill exists. It is massive. It is precisely quantified. And it never appears in a farm balance sheet.

The research bureau BASIC published in 2024 a study that should feature in every debate on the agricultural transition and that has been cited in none of them at the level of what it demonstrates. The French food system generates every year nineteen billion euros of costs for society, to compensate for the health, social and environmental damage it produces and does not internalise in its prices. Of these nineteen billion, twelve point three billion are absorbed every year by Social Security to treat the diseases directly attributable to an unbalanced, ultra-processed diet: type 2 diabetes, whose case numbers have risen by one hundred and sixty percent in twenty years in France, obesity, hypertension, digestive cancers and neurodegenerative pathologies. Nothing abstract in this cost. It is an annual levy of twelve point three billion euros on the social contributions of all French people to treat the consequences of a food model whose sale prices are kept artificially low precisely because these costs are not passed back to the producer.

Water pollution by pesticides costs an additional one to one point five billion euros every year to French households, in extra drinking water treatment costs, in closures of water catchments, in the substitution of contaminated resources. The Commissariat general au developpement durable has documented this figure for several years. It nevertheless remains absent from the cost column of the conventional model. The Sytra bureau puts the social costs of synthetic pesticides alone in France at three hundred and seventy-two million euros per year, explicitly acknowledging that this figure is far below reality since it takes into account neither the diseases not yet officially recognised nor the collapse of pollinator biodiversity, whose economic value to French agriculture has been put at between fourteen and twenty-two billion euros per year. The Compensation Fund for Victims of Pesticides paid out eighteen point seven million euros in 2024 to compensate sick farmers. Ninety-four percent of the claimants are agricultural workers. The recognised pathologies include Parkinson's disease, non-Hodgkin lymphomas and prostate cancer.

One category of costs escapes any nomenclature in France: the cost of regulatory inertia in the face of global warming. Regulations designed in the 1970s and 1980s for a stable climate and soils that still functioned continue to apply to a territory whose water, thermal and biological regime has profoundly changed. And every year that passes without revising them, the bill grows. Clay Shrink-Swell is the most documented and most quantifiable example. The Caisse Centrale de Reassurance puts this risk at three to four billion euros per year of claims linked to the cracking of the foundations of houses built on clay soils, the second most costly natural risk for French insurers after floods. This risk is caused by the summer drying of clay, which shrinks and cracks foundations, then by its swelling when the rains return, a cycle that intensifies directly with the multiplication of drought episodes and intense rainfall that global warming produces. The regulation on non-collective sanitation requires any water treatment system to be at least five metres from the foundations to avoid infiltration. In doing so, it deprives the clay soil of the regular moisture that would precisely stabilise its volume between extreme episodes. It is a norm that structurally worsens the problem it claims to prevent, and whose cost rises every year with the warming, for lack of a revision decision that nothing actually prevents. This is not an isolated case. It is a textbook case of a general phenomenon: sanitation, urban planning, irrigation, stormwater and construction norms designed for a climate that is no longer ours and that produce growing damage precisely because they have not evolved at the pace of the warming. Every year of regulatory inertia is a year of avoidable costs transferred to insurers, local authorities and taxpayers. The speed of global warming demands an equivalent speed of regulatory revision. This is not an ideological question. It is an accounting question.

In 2024, a study published in the European Journal of Epidemiology by Mathias Brugel, Victoria Gauthier, Olivier Bouche, Marta Blangiardo and Michael Genin cross-referenced the geographical distribution of pancreatic cancer diagnoses in France with local pesticide use registers between 2011 and 2021, covering one hundred and thirty-four thousand one hundred and two incident cases representing ninety-nine percent of the French population. The study revealed a statistically significant association between the risk of developing this cancer and the cumulative quantities of pesticides used per unit of area. Among the substances specifically associated with this excess risk are glyphosate, mancozeb and sprayed sulphur. The authors describe the correlation as weak but robust. Since 2015, the International Agency for Research on Cancer has classified glyphosate as a probable human carcinogen. INSERM, in its collective expert review updated in 2021, ruled on a medium presumption of a link between glyphosate exposure in agricultural settings and non-Hodgkin lymphomas. The Ramazzini Institute has demonstrated on animal models that long-term exposure to glyphosate promoted the appearance of leukaemias and various tumours at doses nevertheless considered safe by European regulatory agencies.

To this pesticide bill is added a health debt whose amount is not yet quantifiable because the associated pathologies are being documented, but whose biological reality is no longer contested by any serious researcher: microplastics. Detected for the first time in human blood in 2022 in a Dutch study published in Environment International, they have since been found in breast milk, lung tissue and the human placenta. In agricultural soils, they come from spread sludge, plastic mulching films and degraded food packaging. They climb the trophic chain from soils to plants, from plants to farm animals, from animals to the plate. The first studies establish links with chronic inflammation, colorectal cancers and hormonal disruption. The health cost of this contamination appears in no national balance sheet because the associated pathologies will take decades to be officially recognised, exactly as tobacco took decades to be recognised as carcinogenic after the first epidemiological correlations were published.

What these figures demonstrate together is of absolute accounting clarity. The conventional agricultural model is not cheaper than the regenerative model. It is subsidised twice: a first time by the Common Agricultural Policy, which directly finances farms without any genuinely binding conditionality, and a second time by Social Security and households, which finance the health and environmental consequences of these practices without that cost ever being charged to the model that generates it. When you integrate these nineteen billion annual euros into the calculation of the real cost of French industrial food, the regenerative model is not more expensive. It is structurally cheaper. It produces health where the other produces disease, biodiversity where the other produces emptiness, filtered water where the other produces pollution, and stored carbon where the other produces emissions. The difference between the two models is not a difference of agronomic performance. It is a difference of accounting. And this accounting, once made honest and complete, leaves no more room for doubt about what France must do.

What functional ecology does that industrial livestock farming cannot do. The natural regulation of epidemics.

Avian flu H5N1. African swine fever. Coronaviruses. These three names alone sum up several decades of world health alerts, billions of euros of preventive culls, hundreds of millions of vaccine doses and a question nobody ever asks frankly: why do these epidemics always emerge in the same conditions, and why is the model that produces them never questioned?

The conventional answer to an epizootic is confinement, preventive hyper-medication and mass culling. It is an answer that treats the consequence without ever touching the cause. The cause is architectural. Concentrating fifty thousand poultry at the same physiological stage in a closed building creates a perfect bioreactor. If a virus gets in, the density guarantees exponential transmission and favours rapid mutations towards highly pathogenic strains. The reproduction rate of any infectious agent, what epidemiologists call R0, is mechanically amplified by density. The industrial model is a machine for manufacturing epidemics, and it manufactures them with a regularity whose structural character is never named, because the economic question behind that qualification is too disturbing.

Silvopastoralism, and more generally livestock farming in functional ecology, act on this architecture at the root. Controlled density, the absolute condition of the system, mechanically breaks the R0 of any pathogen. The epidemic dies out for lack of relays before it can reach the threshold of exponential spread. This is not a health measure. It is a geometric consequence of space.

An animal fed standardised industrial rations develops a chronic inflammatory terrain. The omega-6 to omega-3 ratio in the meat from these farms reaches between ten to one and twenty to one, where animal and human biology functions optimally around two to one. An immune system inflamed and stressed by confinement is biologically vulnerable. Placed back in a diversified agroecological system, the animal recovers a diet adapted to its physiology: complex grasses, leaves, acorns, tannins, living soil. This diet brings the ratio back towards its optimal level, constitutes the animal's own immune shield, and simultaneously becomes, through the food chain, a protection factor for the human who consumes it.

Respiratory viruses thrive in confined atmospheres saturated with ammonia from concentrated droppings, which burn and weaken the animals' respiratory tracts. Open-air farming under tree cover exposes the environment to the sun's ultraviolet rays, the most effective natural destroyer of viral envelopes. The microbial biomass of a living, forest soil rapidly degrades and outcompetes the excreted pathogenic viral particles, acting as a continuous biological filter where the concrete of an industrial farm demands permanent chemical disinfection whose effectiveness is momentary and whose cost is recurrent.

Industrial farms are genetic monocultures. If a virus gets around the immunity of one industrial chicken, it gets around that of the fifty thousand others with the same ease. Functional ecology mobilises hardy, varied breeds adapted to local terroirs. This genetic diversity between breeds and within herds opposes to the linear spread of an epidemic a wall of heterogeneous resistances that no pathogen can cross uniformly. It is the same principle as the genetic diversity of forests facing forest pathogens: a monospecific forest collapses, a diversified forest resists.

The risk of a zoonosis is not only that a virus mutates. It is that the human population is incapable of facing it. The severe forms of human viral diseases strike first the organisms affected by metabolic diseases, and the industrial food system is directly responsible for the surge in these comorbidities: type 2 diabetes up one hundred and sixty percent in twenty years, obesity, cardiovascular disease, chronic immune deficiencies stemming from an ultra-processed, nutritionally impoverished diet. By replacing this food with foods of high nutritional density from living soils, the system restores the overall immunity of the population at public health scale. This is not a promise. It is a documented biological mechanism.

Soil health, animal health and human health are not three separate disciplines that three different ministries administer while ignoring the other two. It is one and the same biological loop which, when it is not broken, is designed to self-regulate. The industrial model broke this loop. The regenerative model closes it again. And when it is closed, viruses no longer have the bioreactor, the weakened host or the density that allow them to become epidemics.

Before the operating debt, there is the installation debt. The price of agricultural land in France has risen by forty percent in ten years according to SAFER. A young farmer who wants to set up in regenerative agriculture runs into an entry price that forces him to take on massive debt before he has planted a hedge or buried a kilo of biochar. Without a reform of agricultural land tenure that links the right to the land to a commitment to regenerative practices, the transition will remain structurally reserved for those who inherited land. It is a lock before the lock of debt.

And in my pocket, what does that mean exactly?

The average debt of a French farmer today is 225,580 euros. This figure has been multiplied by four and a half in forty years. A pig farmer carries on average 575,800 euros of debt. A poultry farmer, 345,500 euros. The overall debt ratio hovers around 42% on average, rising to 50% on large farms. One euro in two of the farm's value belongs to the bank.

It is exactly this lock that the system uses to keep farmers captive.

This lock is unlocked by three mechanisms simultaneously. First, current loans are requalified at a subsidised rate as soon as a certified transition contract is signed. On 225,000 euros of average borrowing, two points of interest less means 4,500 euros staying in the pocket from the first year. For a pig farmer with 575,000 euros of debt, that is 11,500 euros of immediate annual savings. Before the first hedge is planted. Second, an advance on future carbon credits is paid from the first year by a public fund. The farmer does not wait. He collects. Third, the dependency on the inputs the cooperative sells on credit is progressively reduced. Every kilo of nitrogen the soil manufactures by itself is a kilo he no longer buys.

The transition has a valley. Three to five years during which the soil learns to do without the chemistry that kept it on a drip, and during which yields can fall before biology takes back control. This risk exists. Denying it would be lying. It is precisely to cross it without failing that the subsidised rate and the advance on carbon credits come in from the first year: not after the transition. During it.

By the tenth year, the cumulative net gains between cost savings and new revenues sit between 25,000 and 45,000 euros per year better than at year zero. On a farm whose real net margin was between 20,000 and 40,000 euros, that is a doubling or a tripling. Without one more hectare. Without one more machine. Without one more loan. By putting biology to work instead of fuel and chemistry.

This is not a revolution. It is a liberation through accounting. The question every indebted farmer must ask himself is not do I believe in ecology. It is: do I want to keep working to repay others, or start building something that truly belongs to me.

The national macro-economic assessment.

No agricultural balance sheet today measures what a farm whose biological capital increases every year is worth. A farm with twenty species of earthworms per square metre, three hundred species of auxiliary insects and an active mycorrhizal network is a farm whose real productive value grows without additional investment. This capital appears in no balance sheet asset, in no banking ratio, in no land valuation. The day national accounting integrates the value of natural capital into farm balance sheets, as advocated by the work of Pavan Sukhdev for the United Nations Environment Programme, regenerative farms will be the most capitalised in France. That day is closer than people think: the European green taxonomy Christine Lagarde defends at the ECB is moving in that direction.

Reduction of nitrates and pesticides towards the aquifers by 40 to 80% through permanent covers and hedges. Savings of 400 to 500 million litres of agricultural fuel by stopping deep ploughing. Reduction of 1.5 to 2.5 billion euros of imported chemical inputs per year. Progressive elimination of 1 to 1.5 billion euros of drinking water depollution. Reduction of 1 to 1.5 billion euros of flood damage. Injection of 750 million to 1.2 billion euros per year in carbon credits directly into rural agricultural cash flow.

This programme does not cost the nation money. It transfers 3 to 5 billion euros of annual charges towards the net margin of farmers and the health benefits of citizens. This is not an ecological policy. It is the most profitable restructuring of the nation's budget available today.

The State already has all the data needed to build an agronomic navigation tool every farmer could consult in real time before choosing his crops, his practices and his investments. The BRGM maps the state of the aquifers in real time. INRAE has documented resilient crops by soil and climate type for decades. The GIS Sol maps soil degradation and recovery plot by plot. Futures markets publish crop prices continuously. Carbon credit registries document eligible practices and available rates. Thirty and ninety day weather forecasts are accessible by commune. Crossing these flows of public data already paid for by the taxpayer in a personalised agronomic advice platform means transforming scattered knowledge into a concrete competitive advantage for the one who works the soil. When a farmer decides in January whether to sow sorghum or wheat on a clay plot in a stressed aquifer zone, he should be able to know in real time, to take an illustrative example, that the aquifer under his plot is at minus forty percent of its normal recharge, that the price of sorghum on the futures markets is higher than wheat, that the ninety day climate forecasts indicate a probable water deficit, and that sorghum on this type of soil in these conditions has historically produced a net margin higher than wheat on comparable farms documented by INRAE. This information exists. It is public. It is simply scattered across databases never connected to each other for the farmer who needs it most. This platform does not decide in the farmer's place. It gives him what the traders of the big agrochemical firms have had for years and the individual farmer never had: a complete, real-time view of what his agronomic decision will produce economically, hydrologically and climatically. The farmer remains the captain. Public data finally becomes his compass rather than the compass of those who sell him his inputs.

Public food procurement in France represents an annual volume of about seven billion euros, across school canteens, hospitals, care homes, prisons and administrative restaurants. Directing twenty percent of this procurement towards products from certified regenerative agriculture would create a guaranteed outlet of one billion four hundred million euros per year for farms in transition, economically securing their first decade without requiring one euro of additional subsidy. It is the same logic as the public procurement of renewable energy that financed the photovoltaic transition: guaranteeing a buyer of first resort during the ramp-up phase.

Seeds, the nutritional chain and forest meat. What the industrial model broke at every link and what functional ecology restores.

One angle of junk food remains taboo in public debate because it calls into question an agronomic decision presented for sixty years as progress. The F1 hybrid seeds that dominate world agriculture today were not selected to nourish. They were selected to produce in volume, withstand transport over a thousand kilometres, last three weeks on the shelf and satisfy the cosmetic grading criteria of mass retail. Nutritional density was not in the specification. Neither was flavour. Climatic resilience even less.

The result is documented and it is damning. The team of Professor Donald Davis at the University of Texas analysed the official nutritional data of the United States Department of Agriculture covering forty-three vegetable and fruit crops between 1950 and 1999. It brought to light statistically significant drops in the concentration of essential nutrients ranging from five to forty percent depending on the crops and elements measured, calcium, phosphorus, iron, riboflavin and protein foremost. Meta-analyses published in the journal Foods confirm that this nutritional dilution accelerated with the simultaneous degradation of the soils: a hybrid plant pushed with soluble synthetic fertilisers does not need to develop a mycorrhizal network to fetch trace elements at depth. It receives everything through chemistry, grows fast, produces volume and water, but does not absorb what only living soil can transmit. The hybrid seed and the dead soil reinforce each other in nutritional impoverishment. It is the same loop this article has been describing from the start, applied to the plate.

Old and peasant varieties preserved for more than fifty years show concentrations of polyphenols, flavonoids, antioxidants and secondary metabolites sometimes several times higher than those of standardised hybrids grown off-soil or in ultra-intensive systems, according to the review syntheses published notably by the Swedish University of Agricultural Sciences. Nothing to do with agronomic nostalgia. It is biochemistry.

Turning to hardy and wild seeds is therefore not a militant act. It is a medical and economic act simultaneously. Recovering old wheat varieties such as spelt, einkorn or khorasan, non-hybrid terroir tomatoes, hardy animal breeds adapted to rangeland, is cutting off at the root a substantial part of the junk food the health system then pays for at twelve point three billion euros per year of chronic disease. It is also removing the cosmetic grading that destroys between fifteen and thirty percent of a perfectly edible harvest for purely visual reasons, immediately returning that volume to sale without one gram of additional input. And it is taking back a sovereignty that four world firms have progressively confiscated by patenting what nature and peasants had taken millennia to select, and by making it illegal in many cases to resow the previous harvest.

What nobody tells consumers is nevertheless of absolute simplicity: the low price of industrial food is not the real price. The real price includes the twelve point three billion of Social Security, the billion and a half of water depollution and the eighteen point seven million of the Compensation Fund for Victims of Pesticides, not counting the insurance and regulatory costs this article documents elsewhere. When you add everything up, the imported cherry tomato at ninety-nine cents a punnet is the most expensive food France has ever consumed.

What the hardy seed does for the soil and the plant, the diversified forest range does for the animal. In both cases the principle is identical: give a living organism back access to the biological complexity its physiology co-evolved to exploit, and observe what that complexity produces when you stop impoverishing it. Spelt growing in a living mycorrhizal soil concentrates minerals that hybrid wheat pushed with soluble fertilisers can no longer mobilise. The steer that grazes the complex grasses and oak leaves of a diversified understorey concentrates in its flesh molecules that the maize-fed steer in a building never produces. The chain of nutritional density is a continuous chain that begins in the soil, crosses the plant, passes through the animal and arrives on the plate. The industrial model broke it at every link simultaneously: the dead soil, the impoverished seed, the standardised ration, the homogeneous meat. Restoring it at every link simultaneously is what functional ecology proposes. And the result on the plate is not simply better. It is functionally different at the biochemical level, measurable by science, valuable on the market and a reducer of the health bill the community has been paying for sixty years for the consequences of this rupture.

An animal on a diversified forest range does not eat a ration. It treats itself. The complex grasses of the understorey, the oak and chestnut leaves rich in tannins with documented antiparasitic properties, the acorns loaded with monounsaturated fatty acids of the same family as olive oil, the mycorrhizal fungi at the foot of the trees, the botanical diversity of a living forest soil constitute a pharmacological formulary that ten thousand years of co-evolution between the animal and the forest have optimised without anyone having to write it. Every plant compound ingested ends up transformed and stored in the animal's fats, muscles and organs. The forest enters the flesh. And that flesh enters the human who consumes it.

The biochemical result is documented. The omega-6 to omega-3 ratio in meat from intensive off-soil farming reaches between ten to one and twenty to one, a chronically pro-inflammatory level that epidemiological studies associate with cardiovascular disease, joint pathologies and immune deficiencies. In meat from diversified forest range, this ratio comes back down towards two to one, the level at which human biology evolved for hundreds of millennia and at which its immune system functions optimally. The difference is not played out in taste. It is played out in pharmacology.

Vitamin K2 illustrates precisely what the industrial chain made disappear without ever measuring it. Present in therapeutic quantities in the meat and milk of animals that graze green grass, leaves and diverse plants, vitamin K2 is the essential cofactor for the fixation of calcium in the bones and its non-fixation in the arterial walls. Its deficiency, documented by large epidemiological studies such as the Rotterdam Study, is directly correlated with the calcium paradox favouring the simultaneous explosion of osteoporosis and arterial calcification through lack of activation of the Matrix Gla protein, two pathologies whose treatment costs Social Security billions every year. The industrial meat of an animal fed maize and soy in a closed building no longer contains vitamin K2 in significant quantities. The meat of an animal on forest range does. The forest has not changed. It is the animal that was taken out of the forest.

The tannins of oak and chestnut leaves have documented antiparasitic properties that reduce the intestinal parasite load of grazing animals without recourse to chemical anthelmintics whose residues end up in the meat and in the soils. An animal that deworms itself by grazing does not need preventive chemical medicine. It needs access to the botanical diversity the forest provides it for free.

The market value of this difference already exists and it is considerable. Iberian bellota ham, from pigs fed on oak acorns during the montanera in the Spanish dehesas, reaches between two hundred and five hundred euros per kilo on the world's speciality markets. It is forest silvopastoralism applied to the Iberian pig, and it constitutes one of Europe's most highly valued agricultural exports. The same principle applied to beef, lamb, kid goat and poultry on diversified forest range, with the hardy local breeds that functional ecology puts back at the heart of the system, opens a premium market in French gastronomic restaurants, exports to the Asian and Middle Eastern markets that value traceable exceptional products, and short circuits towards an urban consumption that is looking for exactly what this chain can offer.

And this animal whose diet is known is also an animal whose immune system is robust, whose density on the ground is controlled, whose environment is exposed to UV and filtered by the biology of the living soil. An animal that does not need preventive antibiotics, that does not constitute the epidemic bioreactor that fifty thousand poultry in a closed building constitute, and whose meat does not carry the drug residues that industrial meat transports to the plate and to the aquifers via farm effluents.

France possesses the forests, the hardy breeds, the gastronomic tradition and the distribution network to become the world's leading producer of forest meat of high nutritional density. It has not yet decided to do it. The problem is not technical. It is in the vision.

The silence that precedes collapse. What the disappearance of birds and pollinators announces for agricultural production and for life.

There is in our countryside an inventory that biology draws up alone, without being asked. Not an inventory of what remains. An inventory of what is missing. The birds first. The insects next. And behind them, silently, the harvests.

Between 1980 and 2016, common bird populations declined by 25.4% in Europe. This figure comes from the largest continental analysis ever conducted on the subject, published in PNAS in 2023 by Rigal, Dakos, Devictor and one hundred and forty colleagues from twenty-eight countries, on data from more than twenty thousand standardised monitoring sites covering 170 species over 37 years. The authors used quasi-causal methods based on state-space reconstruction, which allow what causes to be distinguished from what accompanies. The conclusion is unambiguous: agricultural intensification, and in particular the use of pesticides and synthetic fertilisers, is the leading cause of this decline. Ahead of climate change. Ahead of urbanisation. Ahead of changes in forest cover.

But this global figure conceals the reality of agricultural environments. For the species of fields, meadows and hedgerow country, the decline is not 25%. It is 56.8%. More than one bird in two has disappeared from our countryside in one generation. While farm balance sheets were comparing gross margins and input costs, half of the avian fauna of agricultural environments was fading from the landscape without any balance sheet entering it in any cost column.

The birds are not disappearing for lack of sky.

They are disappearing for lack of food. And what they no longer find is what the pesticides removed before them: the insects.

Among the 170 species followed in the study by Rigal et al., insectivores are systematically the most affected by agricultural intensification. This result is not an ornithological detail. It is the legible signature of a trophic rupture. Neonicotinoids and synthetic nitrogen fertilisers do not kill birds directly. They destroy the invertebrates on which 143 of the 170 monitored species depend for their food, and on which almost all depend during the breeding season, when the survival of the chicks rests entirely on a protein supply that only insects can provide at that speed and density. Remove the insects. The chicks starve in the nest. The adults no longer breed. The population collapses.

That is the first cascade. It descends from the treated plant to the poisoned soil, from the soil to the starving insect, from the insect to the bird that can no longer find food.

But there is a second one, invisible, that climbs silently back up towards the harvests.

What the disappearance of pollinators announces for production.

A Joint White Paper published in June 2026, co-signed by one hundred and thirty-five researchers involved in eight major European pollinator research projects, sets out figures that no national agricultural balance sheet yet integrates.

Between 80 and 90% of flowering plants depend on animal pollination to reproduce. Three quarters of the world's food crops benefit directly from pollinators for their yield, their quality and their market value. And world agriculture's dependency on pollinators has increased without interruption for a century, as the volume of pollinator-dependent crops was multiplied by three. Meanwhile, 10% of European wild bee species are threatened with extinction. 15% of butterfly species. 37% of hoverflies. Between 2006 and 2015, the number of wild bee species observed in the world declined by 25% compared with the period before 1990.

The translation into production is now quantified at world scale. According to a modelling study published in Environmental Health Perspectives by Smith, Mueller and their colleagues, we currently lose 3 to 5% of annual world production of fruit, vegetables and nuts for lack of sufficient pollination. This shortfall translates, through a worldwide reduction in the consumption of nutritious foods, into an estimated median of 427,000 annual deaths, with an uncertainty interval running from 86,000 to 691,000, attributable to the impoverishment of the pollinator-dependent food supply. This figure is global. It reflects the scale of human food's dependency on species we are destroying on every continent simultaneously.

The economic order of magnitude of this destruction has been calculated for Europe specifically. A total collapse of wild pollinators in Europe by 2030 would generate a world cost of 34 billion euros per year, of which 24 billion borne in Europe and 12 billion in the European Union alone, according to a modelling study published in Nature Communications in 2025 by Feuerbacher and colleagues, based on general equilibrium models calculating the repercussions through world supply chains. The member states least favourable to biodiversity policies would bear the highest costs. This situation, the authors conclude, would raise the cost of living, feed inflation and nourish political and social distrust.

This is not a catastrophist projection. It is an accounting the current model refuses to keep.

The third cascade: towards the return of the pests.

It is here that biological logic leads to a conclusion that agricultural economic assessments have not yet integrated, but that every link in the chain makes predictable.

An agricultural field is not an inert substrate in which you place seeds and fertilisers. It is an ecosystem in which thousands of species interact permanently, part of which naturally and freely regulates pest populations. Ground beetles and rove beetles hunt on the ground and consume pest larvae and slugs. The parasitoid micro-wasps of the genus Aphidius lay their eggs directly inside living aphids, and each larva hatches inside a dead aphid. Hoverflies pollinate as adults and prey on aphid colonies as larvae. Bats consume every night several thousand nocturnal pest insects, including the lepidopteran caterpillars that devastate unregulated crops. And the insectivorous birds, the very ones that have declined by 56.8% in agricultural environments, exert constant predation pressure on invertebrates on the ground and in the canopies, including on pests.

Yet all these regulators share a common vulnerability with the pollinators. Neonicotinoids, whose toxicity is systemic and persists in the soil for months, reach ground beetles and rove beetles through contact with treated earth. The herbicides that eliminate weeds remove the habitats and floral resources of the auxiliaries at every stage of their life cycle. The disappearance of insectivorous birds removes an entire level of vertebrate regulation that freely exerted a predation pressure no insecticide can imitate in precision or duration.

What we have built in sixty years of intensification is the methodical dismantling of a biological regulation system that agriculture had used for free for millennia, and that we are beginning to have to replace at great cost with chemical molecules whose effectiveness declines as resistances take hold.

The direct experimental demonstration of this mechanism at continental scale does not yet exist. Not because the mechanics are doubtful. Because it is impossible to run a controlled experiment at the scale of a continent over several decades. But every link is documented individually. Pesticides destroy the auxiliaries: the literature on ground beetles, parasitoids and hoverflies shows it. The insectivorous birds that exert predation pressure on invertebrates, including pests, have lost more than half their numbers in agricultural environments. And population dynamics models predict, under these conditions, a reduction in the resistance of agroecosystems to outbreaks of fast-breeding opportunistic species. What biology calls fast-breeding opportunistic species, the farmer calls pests.

The sugar beet crisis of 2026, with its yellows-carrying aphids and its weevils in climatic expansion, illustrates exactly what the system produces when the habitats of its own biological regulators have been systematically destroyed and their populations poisoned. It is not a climatic accident. It is a biological bill. And it will only grow.

What these losses cost, and what remains absent from all the balance sheets.

The pollination services rendered free of charge by wild insects to European agriculture, whose value is recalled earlier in this article, appear in no farm balance sheet. They do not appear when they exist. They do not appear any more when they disappear. Their erosion translates into rising production costs, into the appearance of resistances that force the renewal of molecules, into yield losses in outbreak years, so many charges that swell the input column without any balance sheet entering opposite them the value of the biological service that was destroyed to produce them.

What industrial agriculture calls a cost saving is in reality a cost transfer. It stops paying the pollinators and the biological regulators, a payment that consisted of providing them with habitats and renouncing the molecules that kill them. It starts paying Bayer, Syngenta and BASF to replace imperfectly, and at great cost, the functions the living world performed for free. This transfer appears in no income statement. It is nevertheless real, massive and growing.

The 2,100 species of European wild bees, the 900 species of hoverflies, the five hundred species of day butterflies and the tens of thousands of species of nocturnal flies, beetles and moths that take part in pollination constitute a capital that one hundred million years of co-evolution between flowering plants and their pollinators have produced. Each species pollinates with a specificity and an efficiency that the domestic bee alone cannot replace. This capital cannot be bought back. It can be restored, slowly, if it is given the conditions. Or it keeps crumbling, silently, while the fields fall silent.

Restoring the habitats of pollinators and insectivorous birds in and around agricultural plots is not an act of conservation. It is an investment in the productive resilience of the food system, whose return is documented, non-relocatable, and whose value increases precisely as the chemical alternatives show their limits.

This chapter demonstrates exactly what the article has been demonstrating from the start. What we call a saving, the removal of the living world in favour of chemistry, is a debt. What we call a cost, restoring the auxiliaries, the pollinators, the birds that regulate and pollinate for free, is an investment. Provided we leave them the conditions to do it.

To each soil its answer. The false universality of the objection.

There is an objection every practitioner of functional ecology hears several times a week, formulated with absolute conviction by those who have not yet tried: it cannot work at my place. My soil is calcareous. My soil is sandy. My soil is on a slope. My soil is too clayey. My soil has no soil. This objection deserves a precise, technical, verifiable answer, because it is the last mental lock before taking action, and because it is false in each of its particular cases.

What we know about the reconstruction of degraded soils does not come from contemporary agronomy alone. It comes from a long lineage, often ignored, sometimes rediscovered under other names by practitioners who had not read their predecessors. Ibn al-Awwam, the Andalusian agronomist of the 12th century, documents in his Kitab al-Filaha techniques of crop association, water management on limestone and reconstruction of the fertility of degraded Mediterranean soils that 20th century agronomy believed it was inventing. The Parisian market gardeners of the 18th and 19th centuries pushed this technical genius to a level of industrialisation few eras have equalled. The word primeur had existed since the 14th century, derived from the Latin primus, to designate the very first fruits harvested naturally at the start of spring. It was these market gardeners who gave it its modern agronomic and commercial meaning by inventing the tools to force nature and produce out of season at the scale of a city of several million inhabitants. Their hot beds used the horse manure produced in abundance by animal traction in the streets of Paris: piled under the crops, this fresh manure fermented and gave off a constant heat that could reach thirty degrees at the heart of the stack, warming the earth from below in the middle of winter without any fossil energy. Their glass cloches and their frames placed above captured the slightest ray of sun and trapped the heat, direct ancestors of the modern greenhouse. Their stone walls of Montreuil accumulated solar heat during the day and released it at night, warming the ambient air, making it possible to grow peaches at the latitude of Paris on varieties that would have survived nowhere else in the region. And their half-buried structures used the thermal inertia of the earth itself as a passive temperature regulator, stabilising the interior microclimate whatever the harshness of the winter outside. In these structures, a vine planted inside provided free shading in summer when the heat threatened the crops, lost its foliage in winter and let the light through when it was needed, and produced early grapes as a complementary income. It was an integrated system of a sophistication that the gas-heated greenhouses of the 20th century merely replaced at great cost without ever really improving.

Masanobu Fukuoka patiently rebuilt a soil his parents had degraded through the conventional agriculture of post-war Japan. He nearly gave up. He says so himself in The One-Straw Revolution. He persevered and demonstrated that no-till, the clay-coated seed placed directly on the soil without preparation, and the total absence of input allowed a collapsed soil to rebuild itself progressively through the sole action of the biology one stops destroying. Sepp Holzer did the same thing at 1,500 metres of altitude in Carinthia, in what the inhabitants call the little Austrian Siberia, digging water retentions bordered by outcropping rocks that absorb solar heat even in winter and release it at night, warming the ambient air, creating microclimatic bubbles that gain two to four degrees on the rest of the slope. His terraces dug against the slope hold rainwater and send it back towards the hillside rather than letting it run down the slope carrying away the fertile particles. What Holzer formalised in the high Austrian mountains, the market gardeners of Montreuil had understood two centuries before him with their stone walls: accumulate solar heat in a dense material and release it progressively to create a microclimate that geography alone would not have provided.

What all these practitioners understood, from Ibn al-Awwam to the Parisian market gardeners, from Fukuoka to Holzer, is that nature knows what it has to do and that it is enough to give it the conditions. What this article formalises goes one step further: not only to stop thwarting biology, but to open doors for it that it would take years to find alone, and thus to accelerate reconstruction processes that took Fukuoka a decade, compressing them into two or three seasons. The fifteen-centimetre drilling opens for the pioneer root a path towards the residual moisture of the subsoil before it has had time to look for it. The biochar inoculated with mycorrhizae and nitrogen-fixing bacteria immediately creates the biology the soil would take years to rebuild naturally. The soft-flow bubbler brings regular moisture without passing through the surface where the heat would cancel it. These three interventions force nothing. They prepare the ground so that biology does in two seasons what Fukuoka let it do in ten years. And the link with the hot beds of the Parisian market gardeners is direct: the horse manure fermenting under their crops and the inoculated biochar in our drillings both use biology as a source of energy and nutrition without any fossil input. The technology has changed. The principle is identical.

The bubbler's flow does not need to be set empirically once and for all. Connected moisture probes placed at different depths in the drilling make it possible to steer the flow in real time according to the water content of the biochar, the surface temperature and the forty-eight-hour weather forecast. It is the precision of drip irrigation applied to the underground system. The necessary electronics cost less than one hundred euros per measuring point and connect to any existing agricultural home-automation infrastructure.

The reversal angle of the counter-slope terraces, a direct adaptation of Holzer's principle, is calibrated to the permeability of the soil. The more permeable the soil, sandy or filtering limestone, the more pronounced the counter-slope, because the water infiltrates fast and must be held for a long time. The more impermeable the soil, clayey, compact, the smaller the counter-slope, because the water infiltrates slowly and too pronounced a reversal would create waterlogging. It is an empirical setting refined by field observation, exactly as Holzer refined his own angles for decades on the Krameterhof, and exactly as the Parisian market gardeners refined the thickness of their hot beds according to season and crop.

Outcropping limestone is the most radical example of what this system can accomplish. A limestone slab at the surface is not a mineral desert without a future. It is dormant capital. The Mediterranean basin solved this problem millennia ago through the patient selection of the species that turn the constraint into a resource. The carob tree, Ceratonia siliqua, whose taprooting fractures the limestone over several metres while fixing atmospheric nitrogen, has grown since Antiquity on slabs no modern agronomist would class as agricultural land. The olive tree has grown on these same slabs for three thousand years. The fig tree slips into the slightest limestone crack with a quiet, patient force and produces from the second season. The true pistachio, Pistacia vera, rebuilds the soil's mycorrhizal network as it establishes itself, making each plant a living inoculator of the surrounding substrate. The almond tree opens the season with its early flowering that feeds the pollinators when nothing else is yet in bloom. The caper bush, Capparis spinosa, grows in the joints of dry stone walls where the substrate comes down to a few grams of limestone dust accumulated in a crack, and produces flower buds whose export market value is among the highest of the Mediterranean flora. The jujube, Ziziphus jujuba, used for millennia in the Maghreb and the Middle East on these impossible soils, combines a tolerance of drought and limestone among the best in the plant kingdom with a fruit of high nutritional and medicinal value whose world demand keeps growing. The pomegranate closes this first tree storey with a tolerance of extreme heat and limestone documented since Antiquity and a market value in strong growth on European markets. The moringa, Moringa oleifera, whose taproot descends vertically into the cracks of the rock and whose leaf biomass, exceptionally rich in nitrogen and protein, is of a nutritional density without equivalent, and the paulownia, whose fast-decomposing litter builds an organic horizon where none existed, complete this storey as active pioneers of soil construction.

The intermediate storey combines chickpea and lentil, short-cycle nitrogen fixers marketable from the first season, with sorghum and millet, whose water efficiency makes it possible to produce on soils maize would find impossible, and with quinoa and amaranth, whose root exudates directly stimulate mycorrhizal activity in the biochar of the neighbouring drillings. These crops cover the soil between the trees during the first seasons, fix nitrogen, produce without input and maintain the soil's biology through their root presence alone.

The grid of biochar bubbler drillings running under this system on all types of substrate transforms what would be an isolated point into a network whose zones of influence progressively join beneath the surface, creating a layer of moist, biologically active inoculated biochar that prepares the horizon the trees' roots will colonise in the following seasons. On filtering sandy soil, the bottom of the drilling first receives a layer of compacted clay that slows percolation and keeps moisture within reach of the roots. On compact clay soil, the drilling is the minimal decompactor that opens the first path without turning the horizons. On slopes, the drillings are set out in staggered rows on the counter-slope terraces, transforming each retention line into a row of active absorption points that intercept the runoff before it becomes erosion, while the outcropping rocks and the water retentions create the microclimatic bubbles that widen the range of cultivable species.

This system does not require a soil to function. It manufactures one. And it does so while simultaneously producing fruit of high market value from the third or fourth year, legumes and cereals marketable from the first season, a cover biomass that builds humus, and carbon sequestered at depth that generates carbon credits in cash while the trees grow. The time of restoration is also the time of production.

Functional ecology is a living corpus. What Ibn al-Awwam observed in the 12th century in Andalusia, what the Parisian market gardeners built under their hot beds and their Montreuil walls in the 19th century, what Fukuoka patiently rebuilt in Japan and Holzer in the high Austrian mountains, and what this article formalises and accelerates through targeted, minimal interventions, does not represent the limit of what soil biology can accomplish. Documented avenues remain to be explored and validated by field experimentation. What we already know is largely sufficient to justify an immediate transformation of practices without waiting for all these frontiers to be pushed back.

At your place, it can work. The question is not whether your soil is compatible with regeneration. The question is which is the first species and which is the first technique adapted to your specific constraint. What your calcareous soil, your eroded slope, your filtering sand or your compact clay is telling you is not that you cannot produce. It is that you have not yet chosen the right species and opened the right doors. And that choice, once made, transforms a capital nobody wanted into a system that produces, stores, filters and improves every year without additional input.

And decentralised phytopurification, which we will detail in Episode 5, treats 90% of the polluting load of water for two to three times less than mains drainage. Estimates for the complete renovation of ageing sanitation and drinking water networks run to tens of billions of euros for the immediate catch-up, and between 800 and 1,000 billion to build an equivalent new network. A multiservice tunnel grouping electricity, gas, drinking water, sanitation and fibre in a single accessible, repairable structure would transform this cost into a century-scale investment. But even the best performing tunnel in the world cannot solve what a dead soil produces at the surface. The multiservice tunnel and the living soil are not competitors. They are complementary.

Conclusion. The Green Revolution of the 21st Century is only waiting for our decision.

What we describe in this article is not an ecological programme. It is not a return to the past. It is not a marginal alternative for convinced farmers. It is the agro-economic industrial revolution of the 21st century. The first industrial revolution substituted the steam engine for human labour. The second substituted synthetic chemistry for living biology and multiplied agricultural productivity by thirty in sixty years, at a time when its consequences were not yet visible and when nobody can be held responsible for not having anticipated them. The third substitutes intelligent biology for blind chemistry.

And its fundamental characteristic, the one that distinguishes it from all previous revolutions, is that it leaves no deferred bill to the following generations. It repairs as it builds. And for the first time in the history of industrial agriculture, an economic model proposes to align itself with the rhythms of nature rather than bypassing them with chemistry. Photosynthesis captures carbon at the rhythm of the growing season. Earthworms rebuild macroporosity at the rhythm of their life cycle. Mycorrhizal fungi weave their networks at the rhythm of root colonisation. These rhythms are slow. But they sustain and amplify themselves at no additional cost once set in motion. It is the first industrial revolution in human history whose balance sheet improves with time instead of deteriorating.

The America of 1936 had not chosen to have a Dust Bowl. It had chosen, for two decades, to plough without counting, to cultivate without looking, to produce without giving back. It paid that debt in a few catastrophic seasons. It then chose to plant two hundred million trees, to cover its soils, to rebuild its prairie. Not because the rain came back. Because the biological mesh was rebuilt and the 200 millimetres of infiltration per hour progressively replaced the 2 millimetres of the lifeless soil.

The Spain of 2025 is making that second choice under constraint. Jorge Olcina and Jaime Martinez Valderrama, with their forty colleagues of the CSIC, have mapped the reality of the Spanish territory pixel by pixel. Christine Lavarde has documented the failure of French biodiversity financing with the rigour of a special rapporteur of the Senate. The French GIS Sol has mapped the degradation of our soils. The BRGM publishes the state of the aquifers every month. These reports are public. They are accessible. The problem is not the lack of information. The problem is the decision to read these documents and to draw operational consequences from them.

French farmers did not destroy their soils. They were asked to exploit them this way and were paid to do it. The question is not to blame them. It is to offer them another contract. A contract in which bringing infiltration from 2 millimetres back towards 200 millimetres per hour on their plots is remunerated by the redirected CAP, by the earmarked carbon tax, by carbon credits, by payments for environmental services, by the removal of cosmetic grading.

This revolution belongs to no political party. It is neither left nor right. And even if it may look ecological on the surface, it is not so in the essence of what it develops. It is not a concession made to nature at the expense of the economy. It is resilient. And that is a fundamentally different word.

Some will read in these pages a dirigiste programme, an overly present public hand, mechanisms that constrain the market. That would be an inverted reading. The current system has nothing of a free market: nine billion of annual subsidies paid without real counterpart, health and environmental externalities billed to the community rather than to those who produce them, patented seeds whose resowing is forbidden, food prices that lie because they do not include what they cost. What this article proposes, the truth of prices, the remuneration of services actually rendered, the end of rents financed by public money, is closer to an honest market economy than the model it replaces. And there is a second reason to take this direction without waiting: systems do not negotiate with biology. Aquifers, soils and climate grant no extra time to those who debate. The question is not whether these solutions are liberal or interventionist in inspiration. The question is whether we implement them while they are still a matter of choice, or afterwards, when they will be a matter of urgency, at a cost nobody will have chosen.

To the young generations who will read this article, those who will enter working life in a world where 93% of the aquifers empty simultaneously in July, where Spanish soils desertify province by province, where the accumulated ecological debt is beginning to present its bills, this message is simple. Do not take sides for a political party. Take sides for your future. Take sides for real growth, the kind that rebuilds natural capital rather than consuming it. Take sides for your children, who will inherit either living soils that work for them, or exhausted lands that will present them with bills nobody entered in any balance sheet.

The biological mesh rebuilds itself. The earthworms come back when they are given the conditions. The mycorrhizal fungi weave their networks again when we stop tearing them. The 200 millimetres of infiltration per hour are not lost. They are waiting, beneath our feet, for us to decide to let them return.

Those who make this revolution will not be militants. They will be the entrepreneurs of the next wave of prosperity. And those who do not make it will not be realists. They will be the last representatives of a model whose end the reports of the GIS Sol, the BRGM, the CSIC and the French Senate are already documenting.

GLOSSARY

Aggregates: Stable crumbs formed by the combined action of earthworms, mycorrhizal fungi and soil bacteria. Produced notably thanks to fungal glomalose, which cements the mineral particles together. Their presence is the visible signature of a soil in good structural health. Their destruction by ploughing or compaction leads to the collapse of macroporosity and the fall of infiltration.

AMPA: Aminomethylphosphonic acid. Metabolite from the bacterial degradation of glyphosate in the soil. More persistent than the parent molecule, it is found in runoff water and aquifers long after treatments stop.

Crusting (capping): Formation of an impermeable crust at the surface of silty soils low in organic matter, under the kinetic impact of raindrops. Infiltration falls to zero. The water runs off entirely, carrying away the most fertile particles. Affects nearly 18% of the agricultural soils of metropolitan France.

Biochar: Plant charcoal produced by high-temperature pyrolysis between 650 and 850 degrees Celsius in an oxygen-poor atmosphere. Contains on average 80% pure carbon. Sequestration ratio: 1 kilo of buried biochar sequesters 2.93 kilos of CO2 equivalent. Multi-century, even millennial stability documented by Amazonian Terra Preta.

RCW: Ramial Chipped Wood. Fresh hardwood branches of less than seven centimetres in diameter, finely chipped and incorporated at the soil surface. This diameter is critical: young branches contain in their sapwood the highest proportion of active basidiomycete fungi that produce stable humus from lignin.

CEC: Cation Exchange Capacity. A soil's capacity to retain positively charged ions: calcium, magnesium, potassium, ammonium. Depends directly on the content of organic matter and clays. Its destruction leads to the leaching of nutrients towards the aquifers and forces the farmer to increase his inputs to compensate.

Mycorrhizal fungi: Fungi that colonise plant roots in exchange for carbon sugars. Two main types: the ectomycorrhizae associated with forest trees, and the endomycorrhizae or arbuscular mycorrhizae that colonise the majority of agricultural plants and produce glomalose. Their network of hyphae can extend over several square metres beneath a single plant.

Clay-humus complex: Association between mineral clays and organic humus that constitutes the fundamental matrix of a living soil. Conditions the crumb structure, water retention, CEC and biological fertility. Its destruction by repeated ploughing leads to the collapse of all the soil's biological and hydrological functions.

DAC: Direct Air Capture. Technology for capturing CO2 directly from ambient air, where this gas represents only 0.04% of the volume. Current cost between 400 and 1,000 dollars per tonne. Requires massive public subsidies to exist economically. The carbon thus buried in geological formations produces no positive externality.

Fischer-Tropsch: Catalytic process invented in the 1920s that transforms syngas into liquid hydrocarbons usable as fuel. Centralised biorefinery technology requiring high-pressure reactors and complex catalysts, suited to a cooperative or industrial scale.

Glomalose: A complex of sugar polymers produced by arbuscular mycorrhizal fungi, long known as glomalin and thought to be a glycoprotein before recent characterisations established its carbohydrate nature. It binds to the mineral particles of the soil to form stable complexes that can persist for decades. Represents 15 to 20% of the total organic carbon of healthy agricultural soils. Fundamental to the soil's crumb structure and water retention.

GIS Sol: Scientific Interest Group on Soils. Brings together INRAE, the Ministry of Agriculture and the Ministry of the Environment. Maps and monitors the state of French agricultural soils. Its reports constitute the institutional reference on the degradation of agricultural land in France.

Macroporosity: Network of wide pores in the soil, created by earthworm galleries, the channels left by dead roots and fungal hyphae. They allow the rapid infiltration of rainwater at speeds that can reach 200 millimetres per hour in an intact living soil. Their destruction is the main cause of the fall of infiltration from 200 to 2 millimetres per hour.

N2O: Nitrous oxide. Greenhouse gas whose warming power is 300 times higher than CO2 over a one-hundred-year horizon. Produced by nitrification in aerated conditions and denitrification in weakly aerated conditions. Degraded soils alternating drought and waterlogging are particularly high emitters. Agriculture accounts for nearly 70% of French emissions of this gas.

Neonicotinoids: Systemic insecticides incorporated into the seed or applied as soil treatment. They permeate the whole plant, from the root tips to the pollen, and persist in the soil for months, sometimes years. Their toxicity affects earthworms, springtails, ground beetles and rove beetles hunting on the ground, aquatic invertebrates through leaching, and wild bees, the majority of whose European species nest in the soil.

PES: Payments for Environmental Services. Mechanism of direct remuneration of farmers for the services rendered to the community: management of the water cycle, maintenance of biodiversity, carbon storage, protection of aquifers, regulation of runoff.

Pyrolysis: Thermal decomposition of biomass at high temperature between 400 and 800 degrees Celsius in the absence of oxygen. Simultaneously produces: 20 to 30% solid biochar as a carbon sink, gaseous syngas usable in a generator, and liquid bio-oil valorisable as biofuel by regional biorefineries.

Rhizosphere: Zone of the soil extending a few millimetres around each living root. Contains a concentration of micro-organisms ten to one hundred times higher than the rest of the soil. First place of exchange between the plant and the soil's biology and central mechanism of atmospheric carbon storage.

Silvopastoralism: Livestock system integrating animals into forest ecosystems at controlled density. The animals maintain the forest for free by grazing the scrub and inoculating the litter. The forest provides in return shade, complementary forage and protection from the wind. Animal density is the critical parameter that distinguishes silvopastoralism from destructive overgrazing. The Spanish dehesa is its most documented historical example.

Syngas: Synthesis gas composed mainly of carbon monoxide, hydrogen and methane, produced during the pyrolysis of biomass. Usable directly in a generator to produce the electricity the farm needs, or sent to regional biorefineries to be transformed into liquid fuel.

Terra Preta: Extraordinarily fertile black earths found in the Amazon basin on former pre-Columbian settlement sites. Built up by generations of surface deposits progressively drawn downwards by earthworms and soil fauna. Can reach two metres deep. Still exceptionally fertile centuries after the abandonment of the villages that produced them. Historical demonstration of the century-scale stability of biological carbon integrated into a living soil.

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Yves Nicolas | Consultant in Functional Ecology | yvesnicolas.com | France, Morocco

Newsletter Eau : Realite et Solutions (Water: Reality and Solutions), Episode 4 | August 2026

This article is dense. It was written to be complete, not to be easy. If some passages seem too technical, you can copy any excerpt into an artificial intelligence tool, ChatGPT, Claude, Gemini or any other, and simply ask: explain this passage to me in simple terms. You will obtain in a few seconds a popularisation adapted to your level of familiarity with the subject. Knowledge does not have to remain reserved for those who have the vocabulary to read it.