"The Environmental Protection Agency on Friday announced the first federal guidelines for disposing of coal ash, instructing power plants to implement safeguards against contaminating nearby water supplies."

"WASHINGTON — The federal government isn't fully prepared to handle a nuclear terrorist attack or large-scale natural catastrophe, lacking effective coordination, and in some cases is years away from ensuring adequate emergency shelter and medical treatment, congressional investigators have found."

"Air pollution should be one of the avoidable heart risk factors - just like smoking and excess fat - that doctors warn patients to steer clear of, according to a new statement from 20 heart experts."

"Women who are exposed to high levels of air pollution during their third trimester of pregnancy may be twice as likely to have an autistic child, a study found."

"A longtime energy aide to Maryland Gov. Martin O'Malley (D) who spearheaded the state's climate change initiatives will become the new director of the Bureau of Ocean Energy Management, the agency that oversees oil and gas and renewable energy development on roughly 1.7 billion acres of federal waters."

"The Department of the Interior came out late yesterday with the 3.0 version of its scientific integrity policy, along with a new handbook that describes how the policy will be implemented. The new materials are simplified, streamlined, and more clear, bringing the department once again to the front of the pack in the Obama administration’s quest to create strong scientific integrity standards within federal agencies and departments. Interior Secretary Sally Jewell is expected to speak about the new policy in a keynote address today before the American Geophysical Union meeting in San Francisco."

"Most coastal regions of the United States will see 30 or more days of flooding by 2050 thanks to sea level rise, according to new research the National Oceanic and Atmospheric Administration released Thursday."

"The Obama administration proposed guidelines that require agencies to consider climate change in reviewing of government actions, the latest of a string of environmental directives after Democrats lost control of Congress."

The claim that man-made climate change is a hoax won the "Lie of the Year" poll among readers of Politifact.

"Groundwater levels are declining in an aquifer that serves parts of Wyoming and seven other states, according to a new report by the U.S. Geological Survey."