New Report: Topsoil Loss Worse than Previously Thought

The Agribusiness farming model is wreaking havoc on the nation's rich topsoil and also contaminating huge swaths of our water supply, because the herbicides that are liberally sprayed on our crops are exempted from Clean Water Act regulations. 
http://civileats.com/2011/04/13/watching-the-future-wash-away/

Big Ag is Pissing Away Our Nation's Rich Topsoil
http://www.grist.org/industrial-agriculture/2011-04-13-big-ag-washing-away-midwest-topsoil