"Formaldehyde is a human carcinogen, the National Research Council (NRC) says in a report released today. It upholds a federal classification of the chemical that industry has vigorously disputed."

"The much-debated Keystone XL pipeline could produce four times more global warming pollution than the State Department calculated earlier this year, a new study concludes."

"WASHINGTON -- The environmental group League of Conservation Voters and the union American Federation of State, County and Municipal Employees announced Thursday that they are funneling $2.1 million into the Michigan Senate race in support of Democratic candidate Gary Peters."

"Enbridge says it consulted with regulatory agencies and communities for a year and a half to select the best route, which faces intense public opposition."

"Former Vice President Gore is warning investors to pull their stock in coal assets or face devastating financial consequences."

"An email shows federal and provincial authorities allowed Canadian Natural Resources Limited, under investigation for a serious oilsands leak, to collect some evidence in the probe."

"Wildfires are ravaging the West Coast, burning homes and prompting evacuations. Responding to wildfires has proven costly and now the Obama administration is reevaluating how it pays to fight them.""

"President Obama sought to pressure 'climate change deniers' in a recent interview, pitting them against CEOs of major corporations on the controversial issue."

"Foes say the proposed 180-mile pipeline would harm Massachusetts' pristine forests and scarce farmlands. Proponents say the natural gas would replace dirtier fuels and stabilize winter heating costs."