Even the study's critics, though, agree that topsoil is endangered. "To me, it's not important whether it's exactly a third," says Anna Cates, Minnesota's state

Even the study's critics, though, agree that topsoil is endangered. "To me, it's not important whether it's exactly a third," says Anna Cates, Minnesota's state soil health specialist. "Maybe it's twenty percent, maybe it's forty percent. There's a lot of topsoil gone from the hills." I think this the most important piece from the article. Most are in agreement that topsoil is disappearing. I've heard claims from farmer Joel Salatin that if we continue our current farming practices we have only about 50 harvests until the soil turns to unfertile mud. If you are interested in topsoil production/restoration, his farm, Polyface farms, seems to have a good strategy for continuous fertilization of soil. http://www.polyfacefarms.com/ http://www.polyfacefarms.com/