"The world's oceans are under greater threat than previously believed from a "deadly trio" of global warming, declining oxygen levels and acidification, an international study said on Thursday."

"Florida filed a lawsuit on Tuesday asking the U.S. Supreme Court to reduce neighboring Georgia's use of water from the Chattahoochee River that feeds the oyster beds and fish-spawning areas of Florida's Gulf Coast."

"In an episode that evokes B-grade sci-fi movie plots from the 1950s, but actually reflects a continuing global problem, nuclear engineers in southeastern Sweden have been wrestling with a giant swarm of jellyfish that forced the shutdown of the world’s largest boiling-water reactor."

"MYSTIC, Conn. — On her trainer’s command, an alabaster-skinned beluga whale named Naku placed her chin on the deck of her outdoor pool and exhaled several times, emitting a hollow 'chuff' sound with each breath. The vapor rose into a petri dish a researcher held over her blowhole."

"On an overcast day in early August, a flotilla of five canoes pushed away from a jetty in Astoria, Ore., near where the Pacific breaks on Desolation Point, at the mouth of the Columbia River."

"The federal government is about to release its final, $500 million cleanup plan for the Gowanus Canal, one of New York City’s two Superfund sites, a long-awaited moment in the effort to cleanse more than a century of environmental abuse."

"Shenandoah Riverkeeper Jeff Kelble filed an appeal in Richmond Circuit Court on Wednesday to overturn Virginia's sewage sludge regulations."