"A two-decade-old crackdown on smog and soot under the Clean Air Act will yield about $2 trillion in annual benefits by 2020, according to a study that was released by U.S. EPA this morning and was touted as proof that the embattled agency's rules are an economic boon for the American people."

"The California utility whose gas pipeline exploded last fall had rejected federal recommendations to install more automatic shut-off valves to help reduce the risks from a rupture and fire, an investigative panel was told Tuesday."

"Polystyrene makes comeback in US Congress building after Republicans reverse green initiatives brought in by Democrats."

Some Iowa lawmakers are pushing a bill they say would protect children by removing from the market many plastic products containing BPA, which some scientists think harms health. Lobbyists for the chemical industry say that's premature.

"Hundreds of activists marched to the federal courthouse Monday to support a man who became an environmental folk hero by faking the purchase of $1.7 million of federal oil-and-gas drilling leases in an act of civil disobedience."

A new coalition of clothing retailers, manufacturers, environmental groups, and academics is developing a database which they hope will eventually allow them to give every garment a sustainability score.