"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."

"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."

"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."

"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."

"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."

"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."

"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."

"Rapid changes already underway to the Earth's climate, ecosystems and land cover threaten the health of billions, undermining key human life-support systems and threatening the core foundations of healthy communities worldwide, according to a new report released Wednesday."

"Over the last century, the intensive use of chemical fertilizers has saturated the Earth’s soils, waters, and atmosphere with nitrogen. Now scientists are warning that we must move quickly to revolutionize agricultural systems and greatly reduce the amount of nitrogen we put into the planet's ecosystems."