"State and federal investigators in Louisiana are working to uncover what caused fatal blasts at two different chemical plants in the span of two days."

"There's fresh evidence that the chemical bisphenol A, or BPA, may play a part in childhood obesity."

"Could your driveway be making you sick? Mounting research suggests it could. It's prompting more cities, states and businesses to ban a common pavement sealant linked to higher cancer risks and contaminated soil."

"Syria has crossed a 'red line' with its use of chemical weapons, including the nerve agent sarin gas, against rebels, a move that is prompting the United States to increase the 'scale and scope' of its support for the opposition, the White House said Thursday."

"GEISMAR, La. -- A bomb-like explosion ignited a raging fire at the Williams Olefins chemical plant early Thursday, killing one man and injuring dozens as terrified workers sought shelter from the sprawling flames."

"Phil Robertson may be on the cusp of solving a long-standing mystery."

"Trouble in a major Delaware City Refinery unit sent dark smoke billowing from a stack at the plant early [Tuesday] morning, triggering calls to regulators from nearby residents."

"Think of all the things you've touched today - the door handles pulled, the elevator buttons pushed, the railings held, the coins counted. All of them were coated with germs. Afterward, so were your hands."