As popular as coffee is worldwide, its existence is already under threat by climate change.
The areas of the world that are suitable for coffee production are shrinking as temperatures and weather patterns change in traditional growing regions such as Africa, Asia, and Central and South America. Before European nations set out to colonize the rest of the world, the African country of Yemen was once the near-exclusive source of coffee. Now, thanks to extreme changes in climate causing desertification of once arable land and war, Yemeni production of coffee is at a low point. Moreover, every cup of coffee requires about 37 gallons of water to produce, competing with other foods for the resource.
