Climate change has been linked to increased frequency and intensity of destructive weather events, such as floods and hurricanes. But the effects of a warming planet on crops may pose an even greater danger, especially for the world’s poor, according to the World Bank.

“Agriculture is one of the most important economic sectors in many poor countries,” says a report from the institution. “Unfortunately, it is also one of the most sensitive to climate change given its dependence on weather conditions, both directly and through climate-dependent stressors (pests, epidemics, and sea level rise).”