CDC has increased 10-fold the number of contaminants it tracks in people since starting its biomonitoring program in 2001. But the agency is hitting limits that likely will slow future growth, and no one else is picking up the slack, leaving us ignorant for years to come about more than 99% of the possible toxics in our bodies.

"The nonprofit Center for Biological Diversity has put the U.S. EPA on notice that it intends to sue the agency for failing to adequately evaluate and regulate nearly 400 pesticides harmful to hundreds of endangered species across the country as well as human beings."

"Weighing the future of a controversial wind farm project, Secretary of the Interior Ken Salazar toured Nantucket Sound on a Coast Guard cutter Tuesday, surveying the 24-square-mile area where the proposed project would loom."

Environmental groups fear President Obama's plan to guarantee loans for private power companies to build nuclear plants -- loans too risky for free-market lenders to touch -- would be a set-up for another corporate bailout.

"The study that first suggested a link between vaccines and autism and spurred a long-running, acrimonious debate over the safety of vaccines has been retracted by the British medical journal that published it. The withdrawal supports the scientific evidence that vaccinations don't cause autism, but isn't likely to persuade advocacy groups that believe in a link."

"President Barack Obama on Wednesday will outline a government strategy to boost development of U.S. biofuels and address their environmental challenges, an administration official said."

"The U.S. Department of Energy announced today the formation of a blue ribbon commission to evaluate policy options for a safe, long-term solution to America' growing piles of spent fuel from commercial nuclear power plants ...."

"Forests in the eastern United States appear to be growing faster in response to rising levels of carbon dioxide in the atmosphere, a new study has found."

A new study by scientists from the National Climatic Data Center casts doubt on Anthony Watts' efforts to cast doubt on the U.S. climate record.

"Take a walk, or take a canoe, down the Anacostia River. Here -- in the story of one smelly, trashy and sporadically beautiful stream -- is the unfinished business of the American environmental movement, 40 years after the first Earth Day."