Study Finds That Agricultural Practices Have Massively Stripped Midwest Topsoil

A rusty piece of farm equipment rests forlornly by barren fields.

A new study in the journal Earth’s Future, led by graduate student Evan Thaler and post-doc Jeffrey Kwang, shows that since Euro-American settlement approximately 160 years ago, agricultural fields in the midwestern U.S. have lost, on average, two millimeters of soil per year.