"The Interior Department said Wednesday that oil and gas companies operating in the Gulf of Mexico need to do more to permanently plug nearly 3,000 inactive wells and dismantle about 650 production platforms that are no longer in use."

"WILMINGTON, Del. -- Conservative Senate candidate Christine O'Donnell shocked the state by seizing a surprise primary victory over Republican Rep. Mike Castle, a longtime moderate lawmaker who suffered withering attacks for supporting cap and trade last year."

"The New Mexico Environmental Law Center today appealed to the U.S. Supreme Court to reverse a lower court decision that allows uranium mining in the Four Corners region of New Mexico. The appeal claims the mine would contaminate drinking water used by some 15,000 Navajo people."

"Asia's tiger population could be close to extinction with fewer than 3,500 tigers remaining in the wild and most clustered in fragmented areas making up less than 7 percent of their former range in Asia, a study says. The study in the latest issue of the online journal PLoS Biology says saving tigers living in 42 sites across Asia from poachers, illegal loggers and the wildlife trade is crucial to prevent the species becoming extinct in the wild."