Europe's Climate Crop May Be Sorghum, Study Finds

Europe may have found its next climate crop. New research led by scientists at INRAE and AgroParisTech suggests that sorghum, a heat-loving grain native to sub-Saharan Africa, could become a climate crop for European farms as global warming makes summers hotter and drier. According to the peer-reviewed study, rising temperatures should lift the grain's yields across much of the continent while freeing up irrigation water, handing livestock farmers a tougher alternative to thirsty maize.

The numbers are striking. The model projects this climate crop's average yield climbing from three tonnes per hectare under today's conditions to a range of 3.4 to 3.8 tonnes per hectare between mid-century and 2100. Land with dependable, high output would widen considerably too, growing from 22% of European cropland to between 29% and 34% by the end of the century.

That would be a dramatic shift for a grain that is currently a rounding error on the continent: sorghum covers just 0.1% of Europe's farmland. Maize dominates livestock feed instead, but this year's EU maize yields sank to a relative all-time low after punishing heat, and the crop demands heavy irrigation. Within France, close to two-fifths of irrigated cropland is planted with corn, a share that underscores how much water the current feed system soaks up.

The gains will not be evenly spread. Northern Europe should see yields rise, while southern regions may face small declines as heat intensifies beyond what even sorghum handles comfortably. The researchers describe the overall continental effect for the climate crop as positive, but the map tilts north.

A machine-learning model trained on decades of harvests

To reach those conclusions, the team led by Mohsen Davoudkhani of Université Paris-Saclay built a machine-learning model that predicts grain sorghum yields from key climate signals such as relative humidity, temperature and rainfall. They trained it on historical harvest data, then ran it against 20 climate change scenarios generated by five climate models, covering the middle and the end of this century. The spread of scenarios was meant to keep the conclusions robust rather than tied to one version of the future.

The approach is what sets this work apart. As reported by Phys.org's coverage of the findings, neither sorghum's role in European livestock feed nor its relationship with the continent's changing climate had been examined at a Europe-wide scale before. The full paper, "Potential for Expanding Sorghum Production in Europe in the Face of Climate Change," was published in the journal Earth's Future in early October 2026.

France is already betting on this climate crop

France offers a live preview of the climate crop's transition. The country became Europe's largest sorghum producer in 2024, with growers planting some 103,000 hectares, according to the Chamber of Agriculture. A September 2026 report from Radio France Internationale described French cereal farmers experimenting with the African grain after heatwaves left almost half of this year's maize harvest unusable. One grower south of Paris told RFI his plants look like small maize about 80 centimetres tall, with ears of small green beads that turn red before harvest between September and November.

The agronomics explain the appeal. Sorghum thrives in temperatures of 25 to 35 degrees Celsius and needs far less water than maize: roughly 30% of France's maize area is irrigated, against just 5% of its sorghum area. It is also leaner on inputs. French farmers apply about 111 kilograms of nitrogen per hectare to sorghum, compared with 199 kilograms for maize, TEMP href="https://www.earth.com/plants/an-overlooked-crop-could-help-europe-adapt-to-a-hotter-drier-future/">Earth.com's analysis of the study. The trend is not starting from zero: sorghum production grew 57% in the 2010s compared with the 2000s.

The water story may matter most. Water spared by switching feed grain from maize to sorghum could irrigate other crops and help France grow more of its own animal feed. The study estimates that if sorghum were planted one year in three, it could stand in for around nine-tenths of the corn now fed to livestock. By late century, continental output could reach 98 to 111 million tons, comfortably above the roughly 86 million tons of feed grain the authors see Europe needing.

Why this climate crop is no magic fix

There are real caveats, and the authors do not hide them. The model sees only climate. It leaves out soil quality, farming practices and the fertilizing effect of rising carbon dioxide, and its predictions grow shakier in eastern Europe, far from the regions where its training data originated. Much also depends on whether breeders, markets and farmers can keep pace: sorghum dislikes the cold, few varieties are bred for European conditions, and demand is still thin. According to UkrAgroConsult's report on French growers, weak markets remain the main brake on faster planting, even as interest climbs.

Feed math needs care too. The headline replacement figures treat a kilogram of sorghum as equal to a kilogram of maize, which the researchers call a simplification. Feeding trials show sorghum can substitute for maize only when tannin levels are low and rations are balanced, so it will not suit every farm or animal. The goal, the team stresses, is a partner climate crop that adds variety and eases dependence on one summer grain, not a total takeover. That framing fits a continent that already fails to grow all the maize it consumes.

For readers, the takeaway is about resilience rather than dinner plates. Cheaper, steadier feed grain means less volatile costs for meat, milk and eggs when heatwaves strike, and every drop of irrigation water saved is water available for other harvests. With Europe's heat stress breaking records across half the continent this year, the search for a climate crop that can take the heat is no longer academic. Follow more climate-emergency coverage as adaptation moves from research papers to real fields, and explore the full climate-emergency archive for how food systems are already changing.