Wheat

The U.S. has red states and blue states. China has rice provinces and wheat provinces, and the profound differences between them provide evidence of how cultural assumptions arise.

At a time when the worldwide wheat supply needs to grow, we might not even be able to keep it from diminishing.

Carbon dioxide fertilizes plants, but it can also make crops less nutritious. A new discovery could help farmers develop new strains to feed the world even as carbon dioxide levels rise.