Kevin Murphy says he is proud of what he and the other workers do at the Rosebud mine, including digging the coal and reclaiming the land afterward. Amy Martin/Montana Public Radio hide caption

itoggle caption Amy Martin/Montana Public Radio

After the Animas River spill, rancher Irving Shaggy is forced to travel a 70-mile round trip to get water for his livestock. "It's going to be a long struggle," he says. Laurel Morales/KJZZ hide caption

itoggle caption Laurel Morales/KJZZ

Workers use perforating tools to create fractures in rock. An EPA study finds that "fracking" to reach and extract deep pockets of hydrocarbons has not caused widespread drinking water pollution. Brennan Linsley/AP hide caption

itoggle caption Brennan Linsley/AP

Environmental Protection Agency Administrator Gina McCarthy testifies at an oversight hearing of the Senate Environment and Public Works Committee on Capitol Hill in Washington on July 23. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

Attorney General Eric Holder listens at right as Environmental Protection Agency Administrator Gina McCarthy speaks during a news conference at the Justice Department in Washington on Monday. Evan Vucci/AP hide caption

itoggle caption Evan Vucci/AP

Former President Bill Clinton hugs House Minority Leader Nancy Pelosi of California as another Democrat, Sen. Barbara Boxer of California, looks on at Wednesday's ceremony naming the Environmental Protection Agency headquarters for him. Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP

East Boston, Mass., in 1973 (left) and in 2012. Michael P. Manheim/Environmental Protection Agency hide caption

itoggle caption Michael P. Manheim/Environmental Protection Agency

The Environmental Protection Agency found Hyundai and its sister company, Kia, overstated the fuel economy ratings on about 900,000 cars. Nam Y. Huh/AP hide caption

itoggle caption Nam Y. Huh/AP