"The National Trust, Britain's conservation charity, has signed on to a five-year census of ancient trees organized by a sister charity, the Woodland Trust."
"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."