
Heat at the brink: UN warns global food systems face widening crisis
Extreme heat is increasingly pushing global food systems to the edge, according to a joint FAO–WMO report, with farmers in hot regions unable to work safely for up to about 250 days a year, livestock stressed, and yields of crops like maize and wheat falling as temperatures rise; ocean heatwaves are depleting oxygen and shrinking fish stocks, while forecasts and mobile alerts could help farmers prepare. The report warns that adaptation—ranging from worker protections and debt relief to more diverse, nature-friendly farming—must be scaled up now to prevent cascading price shocks and a deeper crisis, as temperatures above 30C begin to cut crop yields and heat stress starts around 25C for livestock.




