"The Center for Biological Diversity on Wednesday filed a notice of intent to sue the U.S. Interior Department, alleging it has not properly protected polar bears from encroachment on their habitat by the oil industry."

"In the foothills of the Sierra Madre mountains, the carcasses of starving cattle rotted in a bone-dry reservoir. Useless fishing nets hung on dusty fences. Rowboats were stranded in the sand. Down on the valley floor, Rafael Parra bent to the work of feeding the world — and unintentionally warming it."

"Engineers know how to protect people from tornadoes like the ones that recently devastated parts of Kentucky, but builders have headed off efforts to toughen standards."

"A New Orleans-based oil company has agreed to turn over a $432 million cleanup trust fund and pay an additional $43 million to settle a federal lawsuit over cleaning up abandoned wells leaking since 2004, federal prosecutors said Wednesday."