"BALTIMORE -- Even as some Fells Point residents worry that building over a capped toxic site at Harbor Point could endanger their health, records show elevated levels of cancer-causing chromium in groundwater just beyond the area targeted for an upscale development."

"South of Florida's Lake Okeechobee, hundreds of thousands of acres of sugar cane thrive in the heart of one of the world's largest wetlands. The Everglades stretches from the tip of the peninsula to central Florida, north of Lake Okeechobee."

"A proposed copper-nickel mine in northeast Minnesota would generate water pollution for up to 500 years and require billions of dollars in long-term cleanup costs, state regulators have concluded as they near a key stage in the project’s review."

"For the first time, a rigorous scientific investigation has associated a mass whale stranding with a kind of sonar that is widely used to map the ocean floor, a finding that has set off alarms among energy companies and others who say the technology is critical to safe navigation of the planet’s waters."

"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."