"The Gulf of Mexico opened to industrial-size fish farms Thursday after federal regulators declined to oppose the plan."

"U.N. Secretary-General Ban Ki-moon called on Thursday for swifter work on a climate treaty, saying inaction could spell economic disaster and a rise in sea levels of up to 6.5 feet by 2100."

"The human-driven buildup of heat-trapping greenhouse gases in the atmosphere appears to have ended a slide, many millenniums in the making, toward cooler summer temperatures in the Arctic, the authors of a new study report."

"Less than two weeks after the State Department gave the go-ahead for a major new pipeline to carry Alberta oil sands crude into the United States, a network of environmental and Native American groups filed a lawsuit to stop it."

Many kids and adults aren't getting enough Vitamin D. The solution may be as simple as spending more time in the sun.

"They are not cute and cuddly, but the smalltooth sawfish is getting more federal protection in Southwest Florida waters."

"On New Year’s Day, 2009, in the tiny northeast Pennsylvania town of Dimock, a drinking-water well blew up because of a methane leak associated with natural-gas drilling nearby."

"In a mile-high duel, driven firefighters are determined to keep flames from the historic facility."

"Duke Energy’s departure from the star-crossed American Coalition for Clean Coal Electricity seems to have less to do with the viability of clean coal than with the viability of the groups that promote it."

"Geothermal startup AltaRock Energy Inc on Wednesday said it has suspended its demonstration project in California due to geologic anomalies."