by Liz Kimbrough Scientists have found that the Corn Belt region of the U.S. Midwest, which produces 75% of U.S. corn, has lost around 35% of its most fertile topsoil since European colonization in the 1600s. This was the first study to use satellites and lidar to estimate the relationship between soil loss and the topography … Continue reading As its topsoil washes away, the Corn Belt is losing yields—and carbon