"New research shows that killer whales are inhaling bacteria, fungi and viruses once believed to be found only on land. Some of the pathogens are highly virulent. And some are even antibiotic-resistant."

"To the untrained eye, a weed is just a weed, and few of us can tell a thistle from a teasel. But for Paul Heiple and his team of Weed Warriors, knowing the difference is essential to their work routing out invasive plants that threaten the native species at Edgewood Park, a 500-acre natural preserve that overlooks California’s Silicon Valley."

"Federal Fish and Wildlife Service officials say that a drought-induced bird die-off in the Lower Klamath National Wildlife Refuge along the California-Oregon border has ended. But they warn that unless proposals to reconfigure water distribution along the Klamath River are enacted, the problem could recur."

"Sea level rise from global warming is well on the way to doubling the risk of coastal floods 4 feet or more over high tide by 2030 at locations nationwide. In the lower 48 states, nearly 300 energy facilities stand on land below that level, including natural gas infrastructure, electric power plants, and oil and gas refineries. Many more facilities are at risk at higher levels, where flooding will become progressively more likely with time as the sea continues to rise. These results come from a Climate Central combined analysis of datasets from NOAA, USGS and FEMA."

"Scientists may hesitate to link some of the weather extremes of recent years to global warming -- but the public, it seems, is already there."

"The company planning the disputed Keystone XL oil pipeline has proposed a new route through Nebraska that avoids the state's environmentally sensitive Sandhills region."

"In one of the least-shocking political developments of 2012, four major environmental groups simultaneously endorsed President Obama's reelection bid Wednesday."

"In 2006, developers, mining companies and agribusinesses convinced the George W. Bush administration to scale back a proposal that would have widened federal protections for wetlands and waterways in the wake of a muddled Supreme Court ruling on Clean Water Act enforcement."

"ALBANY, N.Y. -- The invasive beetle that has destroyed tens of millions of ash trees over the past decade has been found east of the Hudson River for the first time, marking its closest known threat to New England, researchers in New York told The Associated Press Wednesday."