WWU researcher turns to ancient bristlecone pines for clues on climate change. Counting the tree rings makes it possible for researchers to determine a tree's age. Examining width and variations in the rings over time gives scientists an idea of what kind of stress the trees might have been under. [News Source]

Carbon dioxide bill may aid oil recovery. Passed with little fanfare last legislative session, House Bill 661, also known as the Louisiana Geologic Sequestration of Carbon Dioxide Act, would create a new unit within the Department of Natural Resources dedicated to capturing that greenhouse gas. [News Source]

Who will pay for cap and trade? Projected cost increases associated with a proposed cap-and-trade program have ranged from $175 a household in 2020, calculated by the Congressional Budget Office, to an annual average of $2,979 in Heritage Foundation estimates. [News Source]

Gore addresses young activists at climate conference. More than 1000 people aged 15 to 25 have converged on Sydney to learn political strategies for combating climate change, using lessons from US President Barack Obama's election campaign. [News Source]

Ecotowns to get go-ahead despite local opposition. Ecotowns will form part of a package of green announcements this week which Gordon Brown will argue can help Britain climb out of recession and reduce the threat from climate change. [News Source]

CSO project hits milestone. The $185 million Combined Sewer Overflow project — work put in gear by government order two decades ago to help clean Mount Hope Bay — has scaled a watershed mark. [News Source]

Air quality concerns brought congressional subcommittee to valley in 2004. The Coachella Valley's air quality prompted Rep. Mary Bono Mack, R-Palm Springs, to help bring the U.S. House Subcommittee on Energy and Air Quality for a hearing in Palm Desert on Jan. 12, 2004. [News Source]

Climate-change challenge shifts to the U.S. Senate. A flawed but worthy plan to cut greenhouse gases barely cleared the House and now faces high hurdles in the Senate, whose members are a far tougher sell. [News Source]

Cap & Trade not evil. The American Clean Energy and Security Act, also known as the Cap and Trade bill, approved by the U.S. House of Representatives and now awaiting Senate action, is far from perfect. [News Source]

Britain’s green revolution will power economic recovery. We must once more harness the expertise of our engineers and scientists - and the ambition of our entrepreneurs - to embrace a green revolution that will significantly change the way we all live and work. [News Source]

Local pollution versus global climate. Local air quality is a legitimate issue. But to use that issue to prop up eroding support for the human-caused global warming hypothesis and the global political restructuring that is associated with that movement is disingenuous. [News Source]