"It would be natural to imagine that the fall of Tripoli would mean a significant decrease in the cost of oil and the pain that the average consumer feels at the pump. After all, in February, when unrest in Libya commenced, oil prices hit a two-year high. Libya is only the 15th biggest oil exporter in the world, but the oil it exports is of a particularly desirable type.

"U.S. solar company Evergreen Solar Inc filed for bankruptcy on Monday, its once cutting-edge technology falling victim to competition from cheaper Chinese rivals and solar subsidy cuts in Europe."

"China will double its solar capacity to around 2 gigawatts (GW) by the end of the year as the world's largest solar-panel maker ramps up domestic installation, a local paper said on Saturday citing a government-linked think tank."

"Ray C. Anderson, a leading green business advocate and founder of Interface, one of the world’s largest carpet manufacturers, died this week. He’d spent the last 17 years promoting the benefits of sustainable business practices, not only for protecting the environment but for boosting the bottom line."

"As the congressional leaders decide on members for the new bipartisan debt-reduction super committee, green advocacy groups are already on the offensive, calling on the committee to cut billions of dollars in tax breaks and energy subsidies for the oil and gas industry."

A Stanford professor is showing how many more ecological costs need to be factored in to estimates of the economic impacts of environmental actions.

"HOUSTON — The growing gloom about the economy has pushed down oil and gasoline prices, along with the prices of an array of other commodities. And while that could mean more spending power for consumers, perhaps tempering any possible downturn, the steep drop in energy prices reflects worries that economic activity is headed in the wrong direction."

Federal ethanol subsidies are hardly dead. They are still a key controversy in climate change, air pollution, the automotive industry, agricultural markets, food prices, budget wars, and the 2012 presidential race. No wonder the media mob descending on Iowa for the Aug. 13 straw poll is getting a free banquet of PR pitches.

"Volcano Lake, Calif. -- The news is distressing: A cratering real estate market, tight-fisted banks unwilling to make loans and no appetite among elected officials to let go of a dime. So why are conservationists smiling?"

"Carbon offsets neared all-time lows Friday, confirming their status as the world's worst performing commodity, as slumping demand meets rising supply of the U.N. instrument traded under the Kyoto Protocol."