"The U.S. Environmental Protection Agency plans sweeping changes to the way it tests for diesel emissions after getting duped by clandestine software in Volkswagen cars for seven years."

"As the cal­en­dar flips closer to Sept. 30, the talk on Cap­it­ol Hill is dom­in­ated by Planned Par­ent­hood and the loom­ing gov­ern­ment shut­down. But some fear that lost in the shuffle is an­oth­er, much smal­ler dead­line that could go un­ad­dressed."

"Martin Winterkorn resigned as chief executive of Volkswagen on Wednesday, taking responsibility for an emissions cheating scandal that has gravely damaged the carmaker’s reputation."

"Republican presidential candidate Jeb Bush on Tuesday proposed a sweeping rollback of federal regulations on the environment, Wall Street and other areas, saying a buildup of rules during the Obama administration has stifled economic growth."

"DES MOINES, Iowa – Democratic presidential front-runner Hillary Rodham Clinton declared opposition to the proposed Keystone XL pipeline on Tuesday, ending a long and politically uncomfortable silence on an issue that has become a touchstone for environmentalists and liberal voters."

"The greater sage grouse, a bird whose habitat is spread across 11 Western states, has been saved by collaborative conservation effort and won't be listed as endangered or threatened, the Interior Department announced Tuesday."

"A long-simmering debate in the American West over an imperiled ground-dwelling bird was headed for climax on Tuesday with the Obama administration expected to unveil a conservation plan lacking Endangered Species Act protections."

"For more than a year, Volkswagen executives told the Environmental Protection Agency that discrepancies between the formal air-quality tests on its diesel cars and the much higher pollution levels out on the road were the result of technical issues, not a deliberate attempt to deceive Washington officials."