"During President Obama’s speech tonight, he announced many different ways he would use the executive branch to pursue strong action on climate change. For longtime readers, this is old hat by now; I’ve been over how the EPA can use its pollution authority to cut back on carbon emissions several times. The policy framework hasn’t changed."

"People with high levels of exposure to the banned insecticide DDT were four times more likely to have Alzheimer’s disease than people with low levels, according to a study of patients in Georgia and Texas published today. The research is among the first to report a connection between Alzheimer’s, which is the world’s most common neurodegenerative disease, and chemicals in the environment."

"EUNICE, N.M. — While the only American-owned company that enriches uranium prepares for bankruptcy, its competitor is zooming ahead with construction of what it describes as a cluster of far more economical and efficient new centrifuges."

"When Velma Johnston almost single-handedly persuaded Congress to pass the Wild Free-Roaming Horses and Burros Act of 1971, her goal was to protect an icon of the American West that had been slaughtered, poisoned and abused and was quickly disappearing."

"The agency has needed Congress to approve extra disaster relief funds every year over roughly the past decade to handle mounting climate-related damage."

"WASHINGTON — From climate change to natural gas, energy issues have figured prominently in all of President Barack Obama’s annual State of the Union addresses. Expect the same on Tuesday night, when Obama goes before a joint session of Congress and a nationally televised audience to deliver his assessment of the United States’ health and pitch his policy priorities for the nation."

"This month's chemical spill in West Virginia reveals a weak web of rules on chemical use."

"Negotiators agreed Monday evening on a new five-year Farm Bill that slashes about $23 billion in federal spending by ending direct payments to farmers, consolidating dozens of Agriculture Department programs and by cutting about $8 billion in food stamp assistance."

"The Food and Drug Administration has continued to allow dozens of antibiotics to be used in livestock feed, despite findings from its researchers that the drugs could expose humans to antibiotic-resistant bacteria through the food supply, an environmental advocacy group said in a report Monday."