"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."

"President Obama's $3 billion plan called 'cold comfort' by Republican leaders, who haven't allocated it to help coal-dependent communities."

"The Smithsonian Institution said Friday it would adopt tighter procedures to govern conflicts of interest involving its researchers, the latest development in a widening national discussion of scientific integrity."

"When Pope Francis appeared on the balcony of the Apostolic Palace, where he delivers an address each Sunday, he was met by the usual cheers and by an unusual forest of bright green oversized paper leaves."

"A deep rift threatens the future of one of the nation's oldest and most popular conservation laws as it enters its final 100 days of authorization."

"The House passed legislation Wednesday evening allowing states to opt out of the Obama administration's plan to regulate emissions from power plants by a vote of 247-180."

"University of Oklahoma officials were seeking a $25 million donation from billionaire oilman Harold Hamm last year, records show, at a time when scientists at the school were formulating the state's position on oil drilling and earthquakes."

"The American Petroleum Institute is reviving its election advocacy arm in an attempt to convince voters to choose candidates who support the priorities of the oil and natural gas industry in 2016."

"The White House has threatened to veto two GOP measures taking aim at Obama administration climate efforts."