Climate change impedes access to food and water to the world’s most vulnerable. Syria is facing its worst drought in 900 years. Climate change-driven drought makes it more difficult for places like Kenya to maintain successful livestock and agriculture, exacerbating hunger.

Over 815 million people in the world are chronically hungry, and the number is rising. It can be hard to make sense of a number so large, so a study released in Royal Society Publishing yesterday mapped all the parts of the world that will be affected by climate change-driven hunger and drought in the next century.

It’s almost all of it.