"Photographer and pilot Alex MacLean wanted to learn more about the Keystone XL pipeline, which if approved will carry oil from Canada to the Gulf of Mexico, so he decided to take pictures from above of the tar sands that will supply oil to the project. What he found shocked him."

"Newly released data from federal researchers suggests that coal ash in the Dan River has migrated fairly dramatically in recent weeks but stayed well upstream from Kerr Reservoir."

"State lawmakers who have been cutting environmental regulations in their quest for to streamline government have a new target: cutting the number of air quality monitors around the state."

"Two months ago, Range Resources trucked two small containers of waste from its natural gas drilling operations in Washington County, Pennsylvania, to a local landfill."

"Children who live in neighborhoods bordering Logan International Airport are as much as four times more likely to wheeze, experience shortness of breath, and exhibit other signs of undiagnosed asthma compared with children who live farther away, according to a long-awaited state report released Wednesday night."

"The country’s top 100 electricity producers have reduced emissions of major pollutants in recent years, showing that they could likely handle the new limits on carbon dioxide coming soon from the Environmental Protection Agency (EPA), according to a new report."

"Dartmouth scientist Rachel Obbard was looking at samples of Arctic sea ice for small organisms when something else caught her eye: Tiny, bright-colored bits and pieces and miniature string-like objects that did not seem to belong."

"Carnival Corp. will announce Thursday that it is expanding a clean-air program it announced last year, more than doubling the number of ships that will have exhaust cleaning systems installed - at roughly double the price."

"Federal environmental officials said Thursday that they have reached a deal with Duke Energy to clean up its mess from a massive coal ash spill into the Dan River that coated 70 miles of the waterway in North Carolina and Virginia with toxic gray sludge."

"Though much maligned for its invasion into the air Utahns breathe, carbon is an element that is everywhere, throughout the earth and in all living creatures. In the human body, it’s the second most abundant element, right after oxygen. And in the heart of Utah’s Carbon County, carbon—the primary stuff of coal—is the lifeblood of the residents and the hardscrabble communities formed to mine the black gold that has powered the world for generations."