"A U.S. federal judge has denied ExxonMobil Corp's bid to dismiss a government lawsuit and instead ordered the oil giant to hand over documents going back decades on a pipeline that ruptured last year and inundated an Arkansas town with oil."

"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."

"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."

"Michael Stark, a contributor to The Huffington Post. Ken Ward, a reporter for The Charleston Gazette. Margaret Newkirk, a former reporter for the Akron Beacon Journal. What do they have in common? Murray Energy, the largest privately owned coal company in the United States—which has accused them all of publishing defamatory articles about the company or its founder and president, Robert E. Murray."

"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."