The number of under- and malnourished people around the world is increasing, due in part to climate change, according to a new U.N. report on world hunger. Around 11 percent of the world’s population is currently malnourished, and countries that are most exposed to major changes in climate have higher rates of malnutrition. The report also states that the number of extreme climate-related events—such as extreme heat, droughts, floods and storms—has doubled since the early 1990s.