"Less than a month before negotiators will meet in Copenhagen with the lofty goal of crafting a deal to curb global greenhouse gas emissions, the Obama administration is considering endorsing a limited short-term climate pact and deferring more ambitious action until next year."

"Ocean acidification, caused by rising CO2 levels, is affecting not only coral reefs, but coastal ecosystems by changing everything from the ability of oysters to adhere to the riverbed to the extent of dead zones along the U.S. Pacific coast."

"A coalition of conservation groups are calling on international climate negotiators in Copenhagen next month to develop land-use policy incentives intended to encourage governments to protect natural carbon storehouses -- especially those in northern boreal forests and peatlands found in Canada, Scandinavia and Russia."

"In the new economy created by global warming, forests are turning into a valuable commodity. Promising not to cut them down is one of the most popular ways companies would like to offset their emissions. Correspondent Mark Schapiro follows the trail of one of those offset projects deep into Brazil's Atlantic forest."

"With the clock ticking on the high-stakes Copenhagen climate summit, US President Barack Obama will try to salvage fading hopes for a deal as he meets this month with the leaders of China and India."

"Australia's koalas could be extinct in 30 years, conservationists warned Tuesday, calling for the iconic creatures to be declared an endangered species."

"The Ninth World Wilderness Congress in Mérida, Yucatán, [is] an event that draws together top conservation officials and activists from across the globe to tackle trans-national wilderness issues."

"Power was restored in Brazil after an outage at a dam providing 20 percent of the country's energy thrust about half of the nation's 190 million people into darkness for at least two hours."

"As the world heads for tough negotiations over a global climate deal next month, an influential forecasting agency said on Tuesday that current energy policies were not sustainable, and that a vast transformation of energy use was required to fend off the worst consequences of global warming."

"A climate change deal is needed not just to ward off global warming, but to ensure a shift from increasingly costly fossil fuels that could lead to a doubling of energy bills, the IEA's chief economist said on Tuesday."

"This is the consequence of failure at Copenhagen: A marked shift in scientific effort from solving global warming to adapting to its consequences, a hodge-podge of uncoordinated local efforts to trim emissions – none of which deliver the necessary cuts – and an altered climate."

"An aggressive cancer linked to asbestos is killing more Canadians than ever before, even decades after the end of a boom that saw buildings stuffed with the toxic substance."
 

"Big greenhouse polluting companies around the world, employing thousands of lobbyists, are exerting heavy pressure on governments to weaken climate change laws at home and slow progress on an international climate agreement in Copenhagen, a global investigation reveals."

"An international fisheries group set up to protect Atlantic tuna has done the opposite and driven one species of the fish, the bluefin, to the edge of extinction, environmentalists said Thursday."

"The US has given up hope of reaching a global climate change treaty at Copenhagen and is working towards a deal late next year, the Obama administration said today. The decision ends hopes of a legally binding deal being sealed next month."