A move is afoot in California to put on the ballot an initiative that would cripple the state's effort to slash its greenhouse emissions.

"Environmentalists, fishermen and others in the Copper River region are spearheading a new effort to boost citizen monitoring of the trans-Alaska oil pipeline."

"AUGUSTA, Maine — State environmental officials began making their case Monday for a $200 million cleanup of the HoltraChem site in Orrington, arguing that contaminants in five outdated landfills threaten groundwater supplies and the Penobscot River."

"An effort by railroad companies to control dust blowing from coal trains has drawn the wrath of electric-power generators and the attention of federal regulators."

"Just a month after world leaders fashioned a tentative and nonbinding agreement at the climate change summit meeting in Copenhagen, the deal already appears at risk of coming undone, the top United Nations climate official warned... . "

"The Environmental Protection Agency announced Monday that it would control -- for the first time -- short-lived spikes of an air pollutant common along major roads and linked to respiratory problems."

"A leading congressional Democrat said President Obama needs to 'lay the prestige of the presidency on the line' in his State of the Union address Wednesday and in the months to come on climate change."

Many U.S. homes could be made far less expensive to heat and cool -- reducing greenhouse emissions in the process.

"Americans today receive far more medical radiation than ever before. The average lifetime dose of diagnostic radiation has increased sevenfold since 1980, and more than half of all cancer patients receive radiation therapy. Without a doubt, radiation saves countless lives, and serious accidents are rare. But patients often know little about the harm that can result when safety rules are violated and ever more powerful and technologically complex machines go awry."

"Search warrants served on two Cook Inlet oil facilities last week were based on federal environmental regulators' suspicions that Chevron Corp. had knowingly violated its air pollution permits and made false statements, court filings show."