"Two years after a blowout on BP’s Macondo well killed 11 men and triggered the largest oil spill in U.S. history, oil companies are again plying the waters of the Gulf of Mexico."

"For a man used to pomp and paparazzi, King Juan Carlos of Spain looked shaken, emerging from a hospital in Madrid Wednesday after hip surgery. 'I'm very sorry,' he said, blinking into the cameras, sheepish, and leaning on his crutches. 'I made a mistake, and it won't happen again.'"

"As Earth Day approaches on April 22, organizers view 2012 as a pivotal year to bring the environmental issues facing the planet to the forefront of the global political agenda."

"KOMODO ISLAND, Indonesia — Coral gardens that were among Asia’s most spectacular, teeming with colorful sea life just a few months ago, have been transformed into desolate gray moonscapes by illegal fishermen who use explosives or cyanide to kill or stun their prey."

"WASHINGTON — A hunting bill passed by the House on Tuesday makes it harder to restrict hunting and fishing on public lands and ensures that the hunter's arsenal will continue to include lead bullets."

"Ken Shefton is furious about what the government knew eight years ago and never told him — that the neighborhood where his five sons have been playing is contaminated with lead. Their Cleveland home is a few blocks from a long-forgotten factory that spewed toxic lead dust for about 30 years."

"New research shows that killer whales are inhaling bacteria, fungi and viruses once believed to be found only on land. Some of the pathogens are highly virulent. And some are even antibiotic-resistant."

"To the untrained eye, a weed is just a weed, and few of us can tell a thistle from a teasel. But for Paul Heiple and his team of Weed Warriors, knowing the difference is essential to their work routing out invasive plants that threaten the native species at Edgewood Park, a 500-acre natural preserve that overlooks California’s Silicon Valley."

"Federal Fish and Wildlife Service officials say that a drought-induced bird die-off in the Lower Klamath National Wildlife Refuge along the California-Oregon border has ended. But they warn that unless proposals to reconfigure water distribution along the Klamath River are enacted, the problem could recur."