"The Obama administration convened representatives of hospitals, food producers, professional medical societies and restaurant chains on Tuesday and extracted pledges to reduce the use of lifesaving antibiotics, whose effectiveness is waning because of overuse."

"The Obama administration is set to announce that it will require new rules to cut emissions from airplanes, expanding a quest to tackle climate change that has included a string of significant regulations on cars, trucks and power plants."

"A federal appeals court [Tuesday] rejected a series of challenges from states, environmental groups and energy companies to U.S. EPA's determinations of which parts of the country meet its standard for ozone, a main component of smog."

"There's no good reason for a live, 8-foot sturgeon to be tied by the tail and tethered to the shore of the Columbia River, in the Pacific Northwest."

"Duncan Tarr was arrested during a protest against an oil pipeline in Michigan. The company used crime victim restitution laws to charge Tarr for the work that couldn't be done during the disruption."

"While the global fracking boom has stabilized North America’s energy prices, Chicago — America’s third largest city and the busiest crossroads of the nation’s railroad network — has become ground zero for the debate over heavy crude moved by oil trains."

"Lindsey Graham may paint some green onto the 2016 Republican presidential platform. Just don’t call him a moderate."

"The 'war on coal' started long before Obama took office to control the costly and deadly health impacts of an otherwise cheap and abundant fuel."

"With Senate opponents gearing up to try to kill the Obama administration's now-final "Waters of the United States" rule this summer, an environmental group is launching an ad campaign urging public support for the rule."

"The National Transportation Safety Board (NTSB) is putting the blame squarely on Royal Dutch Shell’s shoulders for the late 2012 grounding of an offshore drilling rig it owned on an Alaska island."