"The record leap in global greenhouse gas emissions last year has thrown the spotlight on the world's only concerted attempt to stem the tide of global warming -- the United Nations climate negotiations."

"The federal government has acknowledged it deliberately excluded data indicating a 20 per cent increase in annual pollution from Canada’s oilsands industry in 2009 from a recent 567-page report on climate change that it was required to submit to the United Nations."

"U.S. dependence on imported oil fell below 50 percent in 2010 for the first time in more than a decade, thanks in part to the weak economy and more fuel efficient vehicles, the Energy Department said on Wednesday."

Abandoned mines in Colorado and across the West are contaminating many streams with toxic discharges.

"Canada’s fabled Northwest Passage will not open up to shipping anytime soon, according to a study that warns global warming is a double-edged sword for northern transportation."

"The U.S. Forest Service is weighing tighter restrictions on aerial fire retardant drops as part of a long-running legal battle over the environmental effects of pouring millions of gallons of the chemical mixture on Western wildlands every year.

Retardant use has soared in recent decades as wildfires have grown larger and more houses have been built on the wildland edge. Nationally, federal and state agencies apply an average of more than 28 million gallons a year, the vast majority of it in the West and much of that in California.

Nearly a third of the retardant used by the Forest Service in the last decade has been in California, where urban development abuts fire-prone wildlands and weather and terrain regularly produce monster blazes.

The proposed limits, outlined in a recently released environmental document, are not expected to cut overall usage. Rather, they are intended to reduce drops on and near waterways, where they can kill fish, and to slightly expand the acreage that is off limits to retardant releases for ecological reasons."

Bettina Boxall reports for the Los Angeles Times May 30, 2011. [28]

"The proposed limits are intended to reduce drops on and near waterways, where they can kill fish, and to slightly expand the acreage that is off limits to retardant releases for ecological reasons."

"Westinghouse Electric Co. and U.S. regulators are wrangling over statements made about the safety of the AP1000 nuclear reactor design, which could be used in at least 14 proposed reactors in the United States."