"The governor of Nebraska on Tuesday approved a revised route through the state for the Keystone XL pipeline, setting up a decision for President Obama that pipeline opponents say will be a crucial test of his intentions on climate change."

President Obama's vow to address climate change in his second Inaugural Address January 21 could actually prove more than bold words. Despite the failure of the 111th and 112th Congresses to pass a cap-and-trade bill or any other major climate change legislation, Obama clearly has the power to limit greenhouse gas emissions himself, using his Supreme Court-tested executive authority under the Clean Air Act and other powers. Key Congressional Democrats are urging him on.

"A new federal report finds toxic contamination remains widespread in the Chesapeake Bay, with severe impacts in some places, which health and environmental advocates say lends support to their push in Annapolis for legislative action on pesticides and other hazardous chemicals."

"The Atlantic Canyons off the Northeastern U.S. plunge as deep as 15,000 feet and harbor diverse and fragile marine ecosystems. Now, the Obama administration’s plans to consider offshore oil and gas exploration in the canyons is troubling conservationists."

"An antibiotic widely used in soaps and cosmetics that mostly goes down the drain is slowly converting to toxins at the bottom of many of Minnesota's lakes and rivers."

"The U.S. Environmental Protection Agency is turning to a Houston activist to lead the fight against environmental injustices around the country."

"Serving hot food on melamine tableware could increase your exposure to melamine, a study released Monday in the journal JAMA Internal Medicine suggests."

"The largest gathering of scientists and engineers from around the world to discuss the effects of the BP Deepwater Horizon oil spill kicks off in New Orleans on Monday, with more than 800 people from universities, state and federal agencies, non-governmental organizations and industry expected to attend. The three day Gulf of Mexico Oil Spill & Ecosystem Science Conference is aimed at understanding the impacts of pollution resulting from the spill and its effect on natural systems in the Gulf and along the shoreline, and on the people who live and work there."

"The lighting industry has finally come up with an energy-efficient replacement for the standard incandescent bulb that people actually seem to like: the LED bulb."