"Hundreds of scientists have signed a letter sent to Canada’s prime minister blasting a federal review recommending the approval of the Northern Gateway tar sands pipeline as biased, Canadian media reported."

"A new University of Waterloo report warns that natural gas seeping from 500,000 wellbores represent 'a threat to environment and public safety' due to groundwater contamination, greenhouse gas emissions and explosion risks wherever methane collects in unvented buildings and spaces."

"The United States slapped new import duties on solar panels and other related products from China on Tuesday after the Commerce department ruled they were produced using Chinese government subsidies, potentially inflaming trade tensions between the two countries."

"TransCanada shut down the southern leg of the Keystone XL (now called the Gulf Coast Pipeline Project) on June 2 for 'routine work,' according to Reuters. "

"Warren Buffett’s $26 billion bet on western U.S. power plants, transmission lines and wind farms is poised to pay off."

"Officials from the U.S. Fish and Wildlife Service and U.S. Coast Guard announced Monday they were working to mitigate damage from a spill of crude oil within the Delta National Wildlife Refuge."

"Enormous amounts of capital investment — up to $2.5 trillion a year — will be needed to supply the world’s energy needs through 2035, according to a report released Monday by the International Energy Agency, the intergovernmental organization based in Paris."'

"The Obama administration unveiled historic environment rules cutting carbon pollution from power plants by 30% on Monday, spurring prospects for a global deal to end climate change but setting up an epic battle over the environment in this year's mid-term elections."

"Whistleblower Justin Greenwell told regulators that his company, Armstrong Coal, was misreporting the dust levels in his mine, potentially putting miners in danger of black lung disease."