Where we went wrong · The Severance
We fed the crop and forgot the soil.
Industrial agriculture is one of the last century's great achievements, since pulling nitrogen straight out of the air now feeds roughly half the people on Earth, and billions of us are alive today because of it, and I am not here to deny any of that.
But we bought it in a particular way, because the high-yield model never raised the soil's own ability to feed a crop, it simply went around that ability, spoon-feeding the plant dissolved nutrients from outside while the living machinery that gathers and holds and recycles fertility sat idle, or was torn up entirely. We mistook the workaround for the foundation, and the bill for that mistake is coming due now, on a dozen fronts at once.
Here is what that bill looks like, set down in the plainest terms I can find, reaching from the ground beneath us to the water we draw on and out into the wider living world that every harvest leans against.
The ground beneath us
1 field
eroded every 5 seconds
A soccer pitch of fertile topsoil is washed or blown off the world's farmland about every five seconds.
~36
billion tonnes a year
That much topsoil is stripped from global cropland annually, far faster than nature can build it back.
1 in 3
of the world's soils
Already degraded today, with more than nine in ten at risk by 2050 if nothing changes.
1,000 yr
to form 2 to 3 cm
Nature makes new topsoil this slowly, so what we overspend now will not return in our lifetimes.
The water we draw on
~70%
of the freshwater we use
Roughly seventy percent of all the freshwater humanity withdraws is poured onto farmland.
~6,000 yr
for an aquifer to refill
Drawn-down groundwater like the Ogallala would take thousands of years to recharge on its own.
6,700 mi²
of ocean gone dead
Fertilizer running off Midwest farms leaves a low-oxygen dead zone in the Gulf of Mexico about the size of New Jersey.
1.5M
hectares lost to salt
Poorly drained irrigation leaves salt behind, taking roughly 1.5 million hectares of farmland out of use every year.
The world beyond the field
~86%
of species at risk
Farming is the single biggest identified threat to some 24,000 of the 28,000 species now facing extinction.
1 million
species threatened
Around a million plant and animal species are now threatened with extinction, many of them within decades.
⅓
of all greenhouse gases
The food system, from clearing land to the farm to the shelf, produces close to a third of human emissions.
6 of 9
planetary limits crossed
Of nine boundaries that keep the Earth stable, six are already breached, with farming a leading driver of several.
CALIBRATEDThese are modern, high-resolution figures from bodies like the FAO, NOAA, and the UN's science panels, and I have deliberately set aside the inflated or retracted numbers that so often get passed around, because the real story is alarming enough on its own.
A workaround run long enough stops being a workaround and becomes a drawdown, and every drawdown has a bottom.
Measured, ongoing, documented · not a doomsday with a date
Read · A 21st Century Agricultural Apocalypse →
