"Citing financial worries, the State of Arizona has backed out of a broad regional effort to limit greenhouse gas emissions in the West through a cap-and-trade system."

"The U.S. Senate's stalled climate bill is getting a last big push from an unlikely ally -- a group of energy companies who say a carbon market will help them get financing for the next generation of energy production."

"Most publicly traded companies that depend on water do not adequately disclose their financial risks to droughts and future regulations, even as water scarcity problems mount, according to a report released on Thursday."

"A new study published in the Feb. 12 issue of Science indicates that the balance of the world's ice may be shifting faster than scientists thought, which may have consequences in a warming world."

Cholera may be the next disaster in Haiti as thousands in tent cities face the coming rainy season without sanitation.

"Rising sea levels already threaten South Florida's coastal floodgates, likely prompting the need for costly retrofits to protect some of the state's most populated areas, water managers warned Wednesday."

"The Natural Resources Defense Council Tuesday announced its endorsement of the first certification program for electronics recycling."

Four households in the West Palm Beach neighborhood called The Acreage, the site of an alleged cancer cluster, have filed suit blaming it on pollution from a nearby Pratt & Whitney plant.

"A bipartisan group of senators has introduced a bill that would sidestep the stalled climate debate on carbon emissions and reduce other harmful gases by large margins in the next few years."

"The EPA wants YOU. Uncle Sam's chief environmental agency is launching a citizens' watchdog program to help track water pollution and waste disposal related to natural gas production from the Marcellus Shale."