"Twenty-one reusable bags sold as alternatives to disposable plastic or paper bags had dangerous levels of lead, according to new test results provided to USA TODAY."

"Now that 2010 has gone down as one of history's hottest years, many states are choosing not to wait for Congress to tackle climate change and are taking their own steps to slash greenhouse gas emissions."

"NASA is about to launch an Earth-observing satellite with new technology onboard designed to broaden our understanding of how the Sun and tiny atmospheric particles called aerosols affect Earth's climate."

"Safety audits by state and local authorities, along with more citizen oversight, could have forced Bayer CropScience to fix longstanding problems that caused an August 2008 explosion that killed two Institute plant workers, the U.S. Chemical Safety Board said in a report issued Thursday."

"A federal judge on Thursday rejected the Obama administration's request to delay by more than a year controversial new regulations targeting emissions of mercury and other hazardous air pollutants from industrial boilers."

"A new species of giant crayfish literally crawled out from under a rock in Tennessee, proving that large new species of animals can be found in highly populated and well-explored places, researchers said on Wednesday."

Quite a few mayors are praising the Energy Department efficiency and conservation block grants authorized under the economic stimulus -- and are seeking to make it permanent.

The wood-burning fireplace, once considered a trophy and luxury, especially by urban dwellers, is acquiring a social stigma among the eco-conscious.

"The Obama administration yesterday rejected a proposal to raise grazing fees on public lands, a decision that suggests ranchers will continue to be charged below-market prices to graze cattle on federal rangelands."

"The first comprehensive genetic study of bedbugs, the irritating pests that have enjoyed a world-wide resurgence in recent years, indicates they are quickly evolving to withstand the pesticides used to combat them."