Global wheat supplies threatened by climate crisis and war

Global wheat supplies and food security are facing significant threats driven by the dual pressures of the climate crisis and ongoing warfare. Wheat serves as a primary source of calories and carbohydrates for much of the world, yet production and distribution are increasingly unstable.

Climate change, specifically extreme heat and drought, has reduced yields in several major wheat-producing nations. Simultaneously, geopolitical conflicts have disrupted trade routes and increased transportation costs. The war in Ukraine has been particularly impactful; Russia and Ukraine together account for nearly one-third of global wheat purchases. The Russian invasion in February 2022 led to blockades in the Black Sea, causing sharp spikes in global food prices and placing tens of millions of people at risk of acute food insecurity.

Experts note that the current global food system relies on unobstructed trade, cheap energy, and a stable climate—none of which are currently guaranteed. While diplomatic efforts have allowed some grain to return to the market and stabilized prices somewhat, the fundamental vulnerabilities of the supply chain remain.