"In a major victory for the Obama administration, the Supreme Court on Tuesday upheld the authority of the Environmental Protection Agency to regulate the smog from coal plants that drifts across state lines from 28 Midwestern and Appalachian states to the East Coast."

"The Department of Energy (DOE) issued recommendations Monday for how the energy industry and its suppliers should build cybersecurity protections into power delivery systems."

"House Democrats on the Energy and Commerce Committee are warning that the GOP's second attempt to reform the nation's chemical laws could jeopardize state and local regulations on hydraulic fracturing."

"NEW ORLEANS — Four years ago the Deepwater Horizon oil rig caught fire and exploded, killing 11 men, spewing millions of barrels of oil into the Gulf of Mexico and staining, seemingly indelibly, the image of BP, the international energy giant responsible for the well."

"Women exposed to high levels of bisphenol A early in their pregnancy had an 83 percent greater risk of miscarriage than women with the lowest levels, according to new research."

"U.S. EPA Administrator Gina McCarthy today struck back at EPA critics in a forceful address to scientists that defended agency actions on climate change, air quality issues and safe drinking water."

People in northern Mississippi and Alabama huddled in hallways and basements as a string of tornadoes ripped through their states Monday, a day after another line of storms killed 16 people to their west."

"Hedge fund manager turned environmentalist Tom Steyer is challenging fellow billionaires, Charles and Davide Koch, to a debate on the Keystone XL pipeline."

"Automakers on average have reduced the greenhouse gas footprint of their model year 2012 passenger vehicles even below the levels required by U.S. EPA's new tailpipe emissions rules, according to a new report released today by the agency."

"The Department of Transportation is planning on sending a 'comprehensive' package of proposals regarding rail shipments of crude oil to the White House for its review [this] week."