Water Is Not Used —
It Is Cycled
The American West isn’t running out of water. It’s running out of ground cover. This is a policy framework for restoring the living water cycle — from biotic pumps to beaver restoration, from ocean life to winter cover crops — to break drought and regreen the West.
⬇ Download Full PDFSix principles that change everything
Keep the ground covered
Bare soil sheds rain and creates heat. Living ground absorbs it. Every plant is water infrastructure.
Life seeds its own rain
Bacteria living on plant leaves travel into clouds and trigger precipitation. Healthy land makes its own rain.
Ocean life drives coastal rain
Phytoplankton produce gases that seed marine clouds. A depleted ocean means less rain on shore.
Slow it, spread it, sink it
Water that soaks into soil stays in the region. Water that runs off leaves forever. Shape the land to hold water.
Managed grazing restores land
Properly moved livestock rebuild soil texture and grass cover — the same way wild herds did for millennia.
Bring back the beavers
Before trapping, beavers maintained hundreds of millions of ponds across North America. Water tables were higher everywhere.
EXECUTIVE SUMMARY: The Drought We Made
The American West is not running out of water. It is running out of ground cover.
The conventional understanding of drought treats water as a finite resource being depleted — a tank that empties. Water policy built on this premise focuses on allocation: who gets what’s left. Water rights systems ration scarcity. Reservoir management tracks the decline. The language itself reveals the paradigm: water “use,” water “consumption,” water “loss.”
Water doesn’t disappear — it moves
Every drop of water that falls on this continent has been here for 4.5 billion years. Water doesn’t get used up — it evaporates, rises into clouds, falls as rain, soaks into the ground, gets taken up by plant roots, and sweats back out through leaves into the air. The question is never “is there enough water?” The question is: where is it in this cycle, and can the land catch and hold it? Bare ground cannot. Living ground can.
Bare ground bakes under the sun, creating localized heat domes that push precipitation away. Bare ground sheds rain rather than absorbing it. Without living vegetation, the biological communities that seed clouds and trigger rainfall are absent. The dust from bare ground is a poor substitute — hydrophobic, a weak nucleation particle compared to biological material from living plants.
The pathway out of Western drought is not desalination plants or pipeline megaprojects. It is ground cover. Grass and trees and managed livestock and beavers and water retention landscapes and no-till farming and mangroves — the recovery of the living systems that have always been responsible for moving water from the ocean to the interior of continents.
This is not a hypothesis. It is demonstrated science, confirmed by researchers from Russia to France to Mexico, and by practitioners on the ground from the Chihuahuan Desert to the Sahel to refugee camps in West Africa.
THE LIVING WATER CYCLE: What Conventional Models Miss
The Biotic Pump — Forests Create Their Own Wind
How forests pull rain from the ocean — thousands of miles inland
When trees release water vapor through their leaves, that vapor rises and condenses into clouds. When gas becomes liquid, it shrinks — and that shrinking creates a low-pressure zone above the forest. Low pressure acts like a vacuum, pulling moist ocean air inland to fill it. The forest essentially creates its own wind and draws rain toward itself. If the forest continues inland, this process keeps working — the Amazon gets as much rain 2,000 miles from the coast as it does at the shoreline. Without forest, rainfall drops off sharply the further you go from the ocean. Desert is what’s left.
Russian theoretical physicists Anastassia Makarieva and Victor Gorshkov, working at the Petersburg Nuclear Physics Institute, developed the biotic pump theory, which holds that it is not atmospheric circulation that drives the hydrological cycle — but the hydrological cycle, powered by living forests, that drives atmospheric circulation.
The implications are extraordinary. In forested river basins, rainfall does not decrease with distance from the ocean. The Amazon receives as much rain 3,000 kilometers inland as it does at the coast. Leticia, Colombia — deep in the Amazon interior — receives more annual rainfall than an island sitting directly in the path of the Atlantic trade winds. Without the forest, Makarieva calculated, it would receive less rain than the Negev Desert.
By contrast, in deforested or bare regions, rainfall decreases exponentially with distance from the ocean. The further inland you go without vegetation, the drier it gets. This is the mechanism by which deforestation creates desert — and by which bare-ground agriculture slowly dries out a region’s interior.
“Forests are complex self-sustaining rainmaking systems, and the major driver of atmospheric circulation on Earth.”
— Anastassia Makarieva, Petersburg Nuclear Physics InstituteThe Bacterial Cloud Seed — Dr. Cindy Morris and Pseudomonas syringae
Bacteria on plant leaves help make it rain
Before rain can fall, the water droplets in a cloud have to freeze into ice crystals around a tiny particle — a “seed.” Without biological seeds, clouds need to get very cold before they rain. But a bacterium called Pseudomonas syringae — which lives on plant leaves — is extraordinarily good at triggering this freezing at much warmer temperatures. The bacteria get lofted off plant surfaces into the sky, travel into clouds, seed ice crystals, and come back down with the rain. Healthy vegetated land generates millions of these seeds. Bare land generates almost none. It’s one reason why deforested and overgrazed areas get less rainfall even when there’s plenty of moisture in the air.
Dr. Cindy Morris, senior scientist and research director at INRAE in Avignon, France, has documented Pseudomonas syringae in clouds, rain, snow, alpine streams, rivers, and lakes across the Northern Hemisphere. Strains isolated from snow were nearly universally ice-nucleation active — suggesting that the bacterium actively seeds the precipitation that carries it back to the ground to colonize new plant surfaces.
David Sands, one of Morris’s collaborators, has suggested that decreased Pseudomonas syringae populations — due to pesticide use, overgrazing, and loss of vegetated land — may be contributing to increased drought frequency. When biological ice nuclei are reduced, precipitation is suppressed. Mineral dust from bare ground is a poor substitute. Dr. Morris has proposed planting strips of vegetation at the base of mountains to release biological nucleators that seed the orographic clouds forming at mountain peaks — a simple, low-cost intervention to increase mountain precipitation.
Marine Aerosols — The Ocean’s Role in Coastal Rain
Tiny ocean creatures make clouds that cool the sea and bring coastal rain
Microscopic algae in the ocean produce a gas called dimethylsulfide (DMS) — the compound that gives the ocean its familiar smell. When this gas rises into the atmosphere, it transforms into tiny particles that serve as seeds for low-lying clouds over the ocean. These clouds reflect sunlight back into space, keeping the ocean cool. They also generate the coastal fog and drizzle that keeps western coastlines moist. When ocean life is depleted — through overfishing, pollution, or warming — less DMS is produced, fewer clouds form, and coastal regions get drier. A healthy, productive ocean is a rain machine. A depleted ocean is not.
This ocean-cloud-rain connection — called the CLAW hypothesis, proposed by scientists Charlson, Lovelock, Andreae, and Warren — links marine biological health directly to coastal precipitation. The phytoplankton, zooplankton, and marine bacteria of a productive ocean are biological participants in the planetary water cycle, generating the aerosol particles that seed marine clouds and drive coastal rainfall.
FARMLAND AS PART-TIME DESERTS
Every winter, across millions of acres of American farmland, something happens that we have normalized so thoroughly we no longer see it as strange: the rain falls on bare dirt.
After harvest, conventional farming leaves fields stripped of all vegetation — plowed, disked, or simply abandoned to frost. Across the Snake River Plain. Across the Columbia Basin. Across the Palouse. Across the Great Plains. Millions of acres of exposed soil, baking or freezing by turns, contributing nothing to the biological water cycle for five, six, seven months of the year.
A bare winter field is a seasonal desert — and it affects how much rain your region gets
When a field is left bare after harvest, several things go wrong at once. Rain bounces off the compacted surface and runs away instead of soaking in. Without plant roots holding soil together, wind carries the topsoil away (this is what caused the Dust Bowl). Without any plants producing biological aerosols, the land stops contributing to local rainfall patterns. And the dark bare soil absorbs heat, creating a small “heat dome” that can push away incoming rain clouds. Multiply this by millions of acres across the West, and you have a region that is actively suppressing its own rainfall — every winter, every year.
Cover Cropping — The Simple Fix
Cover crops — planted after cash crop harvest and terminated before spring planting — are the primary solution to winter bare ground. A cover crop mix might include winter rye, hairy vetch, crimson clover, radishes, and turnips, each serving different functions: nitrogen fixation, deep root channels for water infiltration, biomass production for soil organic matter, weed suppression, and biological aerosol generation.
Research consistently shows that cover-cropped fields have dramatically higher water infiltration rates than bare fields — reducing runoff and increasing groundwater recharge. They build soil organic matter, improving water-holding capacity in the following season. Each one percent increase in soil organic matter stores approximately 16,000 additional gallons of water per acre. They support soil biological communities through the winter, so spring planting begins with a living soil rather than a biologically depleted one.
Relay cropping and crimping — two tools for never leaving ground bare
Relay cropping means planting your next crop before the current one is even harvested — so there’s no gap when the ground is bare. Imagine winter wheat growing up between rows of corn in late summer. By the time the corn comes down, the wheat is already established and covering the soil.
Crimping is a way to kill a cover crop without herbicide: you roll it flat with a heavy roller, which breaks the plant stems and leaves a thick mat of mulch on the surface. This mat blocks weeds, keeps the soil cool and moist in early summer, and slowly feeds the soil food web. Then you plant your cash crop directly through the mulch. No chemicals. No bare ground. No erosion.
A coherent federal policy would require, over a phased transition, that all federally supported farmland maintain continuous or near-continuous ground cover — with robust cost-share support for the transition. Cover cropping is not an agricultural nicety. It is water infrastructure. It is precipitation infrastructure. Every acre of winter cover crop is a contribution to the regional water cycle that no reservoir can replace.
OCEAN DESERTS: The Marine Life We Lost and the Rain We Lost With It
The open ocean looks full of water. It is not always full of life. Large swaths of the world’s oceans — particularly central subtropical gyres, but increasingly large portions of once-productive coastal and shelf seas — are functionally desert. Clear blue water is beautiful. But in the ocean, clarity is not health. Clear water means low phytoplankton. Low phytoplankton means low DMS. Low DMS means fewer cloud condensation nuclei. Fewer cloud condensation nuclei means reduced marine cloud cover, increased ocean heating, and reduced coastal precipitation.
The ocean’s living community is part of the planet’s precipitation machinery. When we deplete it, we lose rain.
Why a depleted ocean means less rain on shore
Think of the ocean’s phytoplankton — tiny algae you can’t see with the naked eye — as doing the same job that bacteria on plant leaves do on land: they send biological particles into the atmosphere that seed clouds. When there are billions of them, there are billions of cloud seeds, and low marine clouds form regularly over the coast, bringing fog, drizzle, and moderating the temperature. When overfishing, pollution, and warming deplete these organisms, there are fewer cloud seeds, fewer clouds, and the coastal region gets hotter and drier. The ocean and the rainfall are connected. We broke the connection when we emptied the sea.
How We Created Ocean Deserts
Industrial fishing removed not only the target species but the ecological structure that productive marine systems depend on. Forage fish — anchovies, sardines, herring, krill — have been harvested to fractions of their historical abundance, disrupting the food web at its base. Bottom trawling destroys the complex seafloor habitat that supports benthic communities. A trawled seafloor is as biologically depleted as a paved parking lot.
Nutrient runoff from agriculture creates coastal dead zones — hypoxic waters where oxygen is depleted by bacterial decomposition of excess nitrogen and phosphorus. The Gulf of Mexico dead zone, fed by nitrogen runoff from the Corn Belt, covers thousands of square miles each summer. Dead zones cannot support the phytoplankton communities that produce DMS, and they cannot support the coastal fisheries that provide ecological function and human food. They are ocean deserts created on land.
What Recovery Looks Like
Before industrial fishing, the coastal oceans of the American West supported populations of whales, sea lions, otters, salmon, herring, anchovy, sardine, and bottomfish that are difficult to imagine now. The Humboldt Current system off California and Oregon — one of the most productive marine ecosystems on Earth — drove enormous phytoplankton blooms that produced massive DMS emissions, seeding the marine stratus clouds that cool the California coast and generate coastal fog and precipitation.
These systems still function. They are diminished but not destroyed. With protection and recovery time, they can rebuild. Kelp forest restoration along the Pacific coast — reintroducing sea otters that control the urchin populations that have replaced kelp in many areas, and actively restoring kelp canopy — rebuilds the three-dimensional structure that supports productive nearshore ecosystems and the biological aerosol production that accompanies them. Marine protected areas with genuine no-take enforcement have demonstrated rapid ecosystem recovery wherever they have been implemented.
Reforming forage fish harvest policy — reducing industrial harvest of anchovies, sardines, herring, and krill for reduction to fishmeal and fish oil, recognizing that these species’ ecosystem value far exceeds their commodity value — would begin the recovery of the marine food web from the bottom up.
DEMONSTRATED PRACTICE: It’s Already Been Done
Alejandro Carrillo — 30,000 Acres in the Chihuahuan Desert
One rancher greened a desert — without irrigation, without seeding, without chemicals
Alejandro Carrillo manages Las Damas Ranch in northern Mexico — 30,000 acres of Chihuahuan Desert that gets less than nine inches of rain per year. When he took over in 2004, it was bare and degraded. By moving his cattle in dense, fast-moving herds — mimicking the way wild bison once moved across the Great Plains — he rebuilt the soil’s ability to absorb water. Infiltration rates went from 2 inches per hour to 18-20 inches per hour on his land. Grass returned. Wildlife returned. And he now gets 10-20% more annual rainfall than neighboring ranches in the same climate zone, because his land creates the biological conditions that attract rain. His neighbors complain about drought. He has grass.
Carrillo never seeded, never irrigated, never used chemicals. He is now part of a broader movement in the Mexican Chihuahuan Desert that covers more than one million acres under regenerative management. The US Marine Corps at MCAS Yuma launched a pilot regenerative grazing program based on his work. He participates as a delegate to the United Nations Convention to Combat Desertification.
The Great Green Wall — What Bare Hands Can Do
Africa’s Great Green Wall is a project to grow an 8,000-kilometer belt of vegetation across the width of the Sahel, halting desertification and restoring degraded land. As of 2022, approximately 15 percent complete, modeling suggests the finished wall could decrease temperatures by 1.5 degrees Celsius and double rainfall in some areas.
Refugees with bare hands are regreening the Sahara’s edge
In some places, the Great Green Wall is being built with hand tools, local seeds, and traditional water-harvesting techniques — including in refugee camps, through self-reliance programs connected to the World Food Programme. If people with almost nothing can begin reversing the spread of the Sahara Desert with hand tools and determination, what can we do in the American West with resources, knowledge, and political will? The question answers itself. What we lack is not the capacity. It’s the decision to try.
Rajendra Singh — The Waterman of India
In Rajasthan, India, Rajendra Singh led a movement to restore traditional earthen check dams across a region that had lost its groundwater and vegetation. The effort restored several rivers that had run dry for decades, increased vegetation cover from 2 percent to 48 percent, and cooled the region by 2 degrees Celsius while increasing rainfall. Community-built water retention structures. No technology. No large budget. Just the principle that water retained in the landscape stays in the landscape.
THE TOOLS: How to Restore the Water Cycle
Water Retention Landscapes — Slow It, Spread It, Sink It
Keyline Design: changing the shape of your land so rain stays instead of runs away
Australian farmer P.A. Yeomans figured out in the 1950s that if you plow your fields in a specific pattern — slightly off the natural contour lines — water spreads toward the drier ridges instead of rushing down into valleys and running off. He called this Keyline Design. Combined with small ponds at the right spots and a specially designed chisel plow that breaks up compacted subsoil without flipping it over, Keyline systems can hold enough water in the landscape to carry a farm through months of drought. The math is striking: for every 1% increase in soil organic matter, you store an additional 16,000 gallons of water per acre. Build the soil, hold the water.
Managed Grazing and the Soil Texture Revolution
Wild ruminants evolved with predators that kept them bunched in dense herds that moved frequently. Their hooves broke soil crusts, pressed seeds into soil contact, trampled grass into mulch, and their dung and urine fed soil biology. After their passage, the land rested and recovered.
When we removed predators and switched to continuous light grazing, we got bare ground between decadent grass clumps, compacted soil, crashed infiltration rates, and rain that ran off instead of soaking in. Managed grazing — high density, short duration, long rest — recreates the disturbance-rest cycle that built the grassland soils of the Great Plains. The results are consistent: recovered vegetation, recovered infiltration, rising water tables, recovering wildlife, more rainfall.
Beaver Restoration — The Original Water Engineers
We had 400 million beavers. We kept almost none. Then we wondered where the water went.
Before European settlement, an estimated 200 to 400 million beavers lived in ponds and wetlands across virtually every drainage in North America. Their dams raised water tables across entire valleys, kept springs flowing through summer drought, sustained fish and waterfowl and the riparian forests that cooled streams. We trapped almost all of them within two centuries. Where beavers have been reintroduced or where simple hand-built “beaver dam analogues” (posts and brush mimicking a beaver dam) have been installed, water tables rise within a single season, springs reappear, and streamflows stabilize. It costs almost nothing. The beaver does the rest.
Agroforestry, Silvopasture, and Mangrove Restoration
Agroforestry integrates trees into crop and pasture systems, providing shade that reduces evaporation, deep root systems that access water and pump it through transpiration, and leaf litter that feeds the soil food web and the biological aerosol communities that link land to clouds. Silvopasture combines these benefits with managed grazing. Along suitable tropical and subtropical coastlines — particularly the triple coastline of Baja California and the western coast of Mexico — mangrove restoration is the coastal equivalent, rebuilding the nearshore ecosystems that support phytoplankton blooms, fisheries, and coastal precipitation.
THE “WATER USE” PROBLEM: Western Water Law Is Making Drought Worse
The law says “use it or lose it” — so farmers can’t conserve water without losing their rights to it
Western water law was built on a simple rule: first come, first served. Whoever was there first gets the water. And if you don’t use your full allocation every year, you can lose your legal right to it. This rule — called “use it or lose it” — means that a farmer who decides to let water stay in a stream, or soak into the ground to recharge an aquifer, or leave some flow for fish can actually lose their legal water right for “non-use.” The law treats water as something you take from nature. It has no category for water you return to nature, or water you leave in the system so the system keeps working. That’s not a water management system. It’s a water extraction system. And it’s helping cause the very drought it was designed to manage.
Reform of Western water law — recognizing that water infiltrated into the soil, left in streams for ecological function, or retained in wetlands constitutes beneficial use — is as important as any physical restoration practice. A rancher who restores grassland cover and improves infiltration is providing measurable downstream water security. Current policy does not recognize or compensate this. Future policy must.
POLICY FRAMEWORK
Federal policy reforms Natalie Fleming supports:
Cover crop mandate for federally supported farmland. A phased requirement that all farms receiving federal support maintain continuous or near-continuous ground cover, with robust cost-share programs to support the transition. Recognition of cover cropping, relay cropping, and crimping as precipitation and water infrastructure, eligible for infrastructure program funding.
BLM and Forest Service grazing reform. Shift from stocking-rate-based to outcome-based management on federal allotments, measuring vegetation cover, infiltration rates, and riparian condition — allowing and incentivizing holistic planned grazing that restores rather than degrades federal rangelands.
Western water law modernization. Federal support for state-level reform of “use it or lose it” provisions; recognition of water infiltration, groundwater recharge, and ecological flows as beneficial use; recognition of hydrological services provided by upland vegetation management.
Beaver restoration program. Federal funding for beaver reintroduction and low-cost beaver dam analogue installation across degraded Western stream systems, with measurement of water table and streamflow recovery outcomes.
Biological aerosol research program. Federal funding for expanded research into biological cloud seeding — building on Dr. Cindy Morris’s work — with demonstration projects planting vegetation strips at mountain locations to seed orographic precipitation.
Marine ecosystem recovery. Reform of forage fish harvest policy; expanded and enforced marine protected areas; kelp forest restoration along the Pacific Coast; federal partnership with Mexico and Central American nations for mangrove restoration along Pacific and Gulf coastlines.
Ocean dead zone remediation. Reductions in agricultural nutrient runoff through cover cropping and buffer strip requirements; recognition that the Gulf of Mexico dead zone is a precipitation and fisheries crisis, not merely an environmental one.
CONCLUSION: The Water We Need Is Already Here
The drought that threatens the American West is not a permanent condition. It is the product of decisions made over the past two centuries — decisions that broke the living systems that have always been responsible for moving water from the sky to the soil to the roots to the leaves to the clouds and back again.
These decisions can be unmade. The science is clear. The practice is demonstrated. The tools exist.
“Deserts are not created by lack of rain. They are created because humanity mishandles water.”
— Tamera Water Retention Landscapes ProjectWe live on a water planet. We are not running out of water. We are running out of the living systems that make water available to us. Every acre of bare ground covered is a cloud seed planted. Every keyline swale dug is a drought deferred. Every beaver pond restored is a spring reborn. Every winter cover crop is months of biological aerosol production that would otherwise be silence.
If refugees with bare hands can begin reversing the Sahara — if a rancher in Mexico can triple his rainfall by moving cattle differently — then what excuse do we have for the bare fields of the Snake River Plain every November?
The question is not whether we can restore the living water cycle. The question is whether we understand, finally, that the water we need is already here — waiting for us to rebuild the living world that knows how to hold it.
Key References
Makarieva, A.M. & Gorshkov, V.G. — Biotic Pump of Atmospheric Moisture as Driver of the Hydrological Cycle on Land (2007, Hydrology and Earth System Sciences)
Morris, C.E. et al. — The Life History of Pseudomonas syringae Is Linked to the Water Cycle (2008, ISME Journal)
Charlson, R.J., Lovelock, J.E., Andreae, M.O. & Warren, S.G. — Oceanic Phytoplankton, Atmospheric Sulfur, Cloud Albedo and Climate (1987, Nature)
Yeomans, P.A. — Water for Every Farm (1954 / revised 1965)
Carrillo, A. — Las Damas Ranch Grasslands Regeneration Project (desertgrasslands.com)
Savory, A. — Holistic Management: A New Framework for Decision Making (1988)
Sheil, D. & Murdiyarso, D. — How Forests Attract Rain (2009, BioScience)