"Federal regulators have declined to release emergency response details and worst-case spill estimates for a pipeline system that carries Canadian oil-sands crude to the United States, drawing charges of excessive secrecy from the advocacy group that sought the data."

An Associated Press investigation explains how federal regulators leave safety up to gas pipelines and utilities, whose profit-seeking decisions on safety cause fatal disasters like the one in San Bruno, Calif., that killed eight and destroyed 55 homes.

"A coalition of public health organizations in the coming weeks plans to step up efforts to oppose legislation that would block or delay Environmental Protection Agency climate rules." Budget-cutting Republicans on Capitol Hill will be encouraged to reduce the healthcare costs borne by taxpayers and ratepayers as a result of air pollution.

"A federal judge said Kenneth Feinberg, the lawyer paying victims of BP Plc’s Gulf of Mexico oil spill, can’t identify himself as an independent administrator of a $20 billion settlement fund."

Acrolein has been a suspect in several key neurological disorders, which are a leading cause of death and illness in the U.S. A new study has deepened understanding of acrolein's natural production in the body, as well as the possible role of environmental exposures to acrolein as a combustion by-product.

"Roughly 85 percent of the world’s oyster reefs have disappeared since the late 19th century, with many formerly prolific reefs rendered 'functionally extinct' because of overharvesting and other manufactured causes, according to a new study published in BioScience."