As its topsoil washes away, the Corn Belt is losing yields — and carbon

2021-12-31 16:39
Chances are, if you live in North America, you’ve eaten corn from the Corn Belt, a region in the United States Midwest that produces 75% of U.S. corn. Scientists have found that around 35% of the region has lost its most fertile A-horizon soil, more commonly known as topsoil, since European colonization in the 1600s, […]