Saltwater wetlands that include marshes and shoals on Virginia's Atlantic coast. U.S. coastal wetlands losses were 25 percent greater from 2004-2009, according to a recent federal study. U.S. Fish and Wildlife Service hide caption

itoggle caption U.S. Fish and Wildlife Service

Mixed grasses growing in a parcel of land enrolled in the Conservation Reserve Program is seen near Tribune, Kan. Millions of acres of CRP nationwide will be returned to farmland.

Charlie Riedel/AP hide caption

itoggle caption Charlie Riedel/AP