"Southern California Edison and the maker of steam generators at San Onofre nuclear plant knew about problems with the generators even before they were installed, Boxer and a congressman assert."

"The United States will struggle to reduce greenhouse gas emissions to promised levels by 2020, a report from a prominent think tank warned this week, but the federal government, states and industry already have the means at their disposal to achieve such goals."

"Greenhouse gas emissions from U.S. power plants fell 4.6 percent in 2011 as more generators were switched to cleaner-burning natural gas and renewable sources from coal, according to new data from the Environmental Protection Agency."

"A comprehensive USDA study concludes rising temperatures could cost farmers millions as they battle new pests, faster weed growth and get smaller yields as climate change continues."

"When colleagues want to conduct business with Sally Jewell, they have a better chance getting her to schedule a lengthy hike than a coffee date. President Obama’s unconventional pick to lead the Interior Department -- a former oil engineer and commercial banker who heads the consumer co-op Recreational Equipment Inc. (REI) -- represents an effort by the administration to defuse the partisan fight over conservation and energy."

An asthma inhaler rigged to a GPS device? Just as this new medical tech device may help researchers determine the precise triggers of asthma attacks, the emerging field of geomedicine promises to help correlate environmental conditions with health risks.

"SAN JOSE, Calif. -- They've been called everything from killing machines to misunderstood predators who are key to healthy ocean environments. Now great white sharks may be called something else: endangered."

"Greenhouse gas emissions from U.S. power plants fell 4.6 percent in 2011 as more generators were switched to cleaner-burning natural gas and renewable sources from coal, according to new data from the Environmental Protection Agency."

"A breaking investigation by EnergyWire appears to connect the dots between shadowy lobbying efforts by shale gas fracking company Range Resources, and the Obama EPA's decision to shut down its high-profile lawsuit against Range for allegedly contaminating groundwater in Weatherford, TX."

"President Barack Obama is leaning toward choosing Gina McCarthy, a top official in charge of air quality at the Environmental Protection Agency, to run the EPA in his second term, according to two sources familiar with the matter."