"Exxon Mobil Corp., the largest U.S. energy company, 'knew or should have known' that drilling pipes it sent to a Louisiana pipe yard were contaminated with dangerous radioactive material, a witness testified in court."

"A month after environmental groups alleged that an Eastern Shore chicken farm was polluting a Chesapeake Bay tributary, state regulators have yet to test the fouled waterway or the pile of sewage sludge said to be contaminating it, officials have acknowledged."

"Nearly five years after fly ash and other debris flowed down Rostosky Ridge Road in Forward Township [Pa.], work was expected to begin to remove the final remains of that slide."

"Joliet is pushing the Illinois Environmental Protection Agency to more than double the concentration of cancer-causing radium it's allowed to dump onto farmland in the south suburbs, expanding the potential for deadly radon gas in these increasingly urban communities."

"Calls from consumer advocates and politicians are growing louder for the Obama administration to name an undersecretary for food safety at the Department of Agriculture's Food Safety and Inspection Service, a position unfilled for more than a year."

"Long-term efforts to help Haiti recover from the earthquake will have to reverse environmental damage such as near-total deforestation that threatens food and water supplies for the Caribbean nation, experts say."

"The U.S. Supreme Court on Tuesday rejected a request by the state of Michigan for an injunction to force the closing of two Chicago-area waterway locks to keep Asian carp from invading the Great Lakes."

The GOP gain of the formerly Democratic Senate seat in Massachusetts is seen by some as diminishing the chances for a cap-and-trade climate bill in the Senate.

"Five years after former President George W. Bush’s administration first proposed allowing fish farming in federal waters, the Obama administration is set to come up with its own set of rules for offshore aquaculture, including deepwater fish farming."

"As awareness of environmental concerns has grown, therapists say they are seeing a rise in bickering between couples and family members over the extent to which they should change their lives to save the planet."