If you believe in thermometers, you should believe in global warming. And if you believe in eating fries with your burger, you should worry more about carbon emissions.
It won't happen overnight, but as the planet's climate changes, the growth cycles of staple crops will all by heavily affected such that even a minor worldwide increase could wreak havoc on your ability to get fries with that. To learn more, we consulted Gerald C. Nelson, Professor Emeritus at University of Illinois (Urbana-Champaign) with a background in climate change and agriculture. Here are five of the crops that might not beat the heat, and what their loss will mean to your diet.