About half the world’s coffee-producing land will be unsuitable by 2050, according to a report from the International Center for Tropical Agriculture (CIAT). Warming will especially damage the higher-quality Arabica bean, which grows best between 64°F and 70°F. Arabica accounts for about two thirds of global coffee production but is limited to subtropical highlands in Brazil, Central America, and East Africa. The low-grade Robusta bean is more heat-resistant, though less tolerant of major swings in temperature and precipitation. And both species suffer from pests like the coffee berry borer, which causes over $500 million in annual damages and is spreading in a warming world.