"The tiny federal agency that has urged big reforms in how California regulates oil refineries is in disarray."

"ANKENY, Iowa — Roman Catholic leaders in the early voting state of Iowa implored candidates for president Thursday to take up Pope Francis’ call for 'profound political courage' by focusing their campaigns as much on improving the environment and income inequality as they have on opposing gay marriage and abortion in past elections."

"New report says food industry groups spend big and 'spin' the truth to turn U.S. consumers away from organic."

"As President Obama prepares to complete sweeping regulations aimed at tackling climate change, at least five Republican governors, including two presidential hopefuls, say they may refuse to carry out the rules in their states."

"U.S. Coast Guard and police boats cleared a way through protesters in kayaks at a Seattle-area port on Tuesday so Royal Dutch Shell's second of two Arctic drilling rigs could depart for Alaska."

"From Ukraine to Uruguay, Moldova to the Philippines, the U.S. Chamber of Commerce and its foreign affiliates have become the hammer for the tobacco industry, engaging in a worldwide effort to fight antismoking laws of all kinds, according to interviews with government ministers, lobbyists, lawmakers and public health groups in Asia, Europe, Latin America and the United States."

"Sixteen states on Monday filed lawsuits against the U.S. Environmental Protection Agency, contesting a rule that expands the definition of bodies of water subject to federal pollution controls."

"The Supreme Court ruled [Monday] that the Obama administration unlawfully failed to consider compliance costs before it issued its landmark power plant emission limits for mercury and other hazardous pollutants."

"The League of Conservation Voters (LCV) launched an advertising campaign Friday against Sen. Mark Kirk (R-Ill.), who is running for reelection."