UN data shows farmland has plateaued and begun to decline.

Sustainability and food researchers Joseph Poore, Hannah Ritchie and Charles Godfray look at places where shrinking farmland has freed up land for nature – and ask how far the trend could go. Below is a summary of the original report published by the BBC.

Researchers report that the world may already have passed the “rewilding milestone” — the point at which farmland expansion has peaked and started to decline. According to UN Food and Agriculture Organization (FAO) data, global agricultural land use plateaued in the early 2000s before entering a slow contraction. Today, roughly half the planet remains under farming, but the overall footprint is shrinking.

Drivers of the Shift

This change is being propelled by rising agricultural yields and declining demand for certain commodities. Improved seeds, fertilizers, irrigation, and more intensive practices have boosted productivity, reducing pressure to convert new land. At the same time, materials like wool, tobacco, and vanilla are increasingly replaced by synthetic or lab-based alternatives, further lowering demand for farmland.

Where Land Is Returning to Nature

Evidence of retreat is clearest in Europe, North America, Central Asia, and Australia, where croplands and pastures have given way to scrubland, grassland, or forests. While this hints at ecological recovery, the picture is mixed: much of the “freed” land is being funneled into monoculture plantations or biofuel crops, which offer limited biodiversity benefits.

Risks and Social Trade-Offs

The transition raises challenges as well. Intensification can squeeze smallholder farmers out of markets, deepen inequalities, and keep ecosystems vulnerable to abrupt policy or market shifts. Passing peak farmland, in other words, does not automatically guarantee a flourishing of nature.

The Uncertain Road Ahead

Future outcomes hinge on technology, policy, and climate change. Advances like vertical farming, lab-grown foods, and smarter fertilizers could accelerate land efficiency. But without strong safeguards, farmland expansion could resume under economic or political pressure. Whether this milestone becomes a stepping stone toward global rewilding, or a missed opportunity, remains undecided.

Source: BBC. Read the full article here
Image: Credit Getty Images via BBC