Climate bill opponent sent forged letters A lobbying firm has acknowledged forging anti-climate bill letters purporting to be from a local NAACP chapter and a Latino advocacy group to a Virginia lawmaker. [News Source]

‘Cash for clunkers’ program runs out of gas. The government's program burns through its $1-billion budget in less than a week as car buyers swarm dealerships. Federal officials are scrambling to find more money to keep it going. [News Source]

‘Cash for clunkers’ program runs out of gas. The government's program burns through its $1-billion budget in less than a week as car buyers swarm dealerships. Federal officials are scrambling to find more money to keep it going. [News Source]

Extinction debt can last millions of years. Extinction can be set in motion millions of years before a species' actual demise, suggesting that present-day drivers of habitat destruction and degradation may have already doomed many species to eventual extinction. [News Source]

Extinction debt can last millions of years. Extinction can be set in motion millions of years before a species' actual demise, suggesting that present-day drivers of habitat destruction and degradation may have already doomed many species to eventual extinction. [News Source]

Thaw point. The Arctic tundra is one of the world’s most extensive ecosystems--and its underlying permafrost can be hundreds of metres deep. But as the world warms up in response to the millions of tonnes of carbon dioxide and other greenhouse gases being poured into the atmosphere each year, so does the tundra. [News Source]

Thaw point. The Arctic tundra is one of the world’s most extensive ecosystems--and its underlying permafrost can be hundreds of metres deep. But as the world warms up in response to the millions of tonnes of carbon dioxide and other greenhouse gases being poured into the atmosphere each year, so does the tundra. [News Source]

Some little states with big emissions could see allowance windfall. Small states with potent carbon dioxide emissions could win big under House climate legislation, according to a new analysis that shows residents of power-pumping states collecting a large number of free pollution permits to soften the rising cost of energy. [News Source]

Some little states with big emissions could see allowance windfall. Small states with potent carbon dioxide emissions could win big under House climate legislation, according to a new analysis that shows residents of power-pumping states collecting a large number of free pollution permits to soften the rising cost of energy. [News Source]

Alaska’s biggest tundra fire sparks climate warning. The fire that raged north of Alaska's Brooks mountain range in 2007 dumped 1.3 million tonnes of carbon dioxide into the atmosphere. Scientists predict that as climate change takes hold, tundra fires will become more frequent. [News Source]

Alaska’s biggest tundra fire sparks climate warning. The fire that raged north of Alaska's Brooks mountain range in 2007 dumped 1.3 million tonnes of carbon dioxide into the atmosphere. Scientists predict that as climate change takes hold, tundra fires will become more frequent. [News Source]