"The state of Alaska filed notice on Friday that it will appeal a federal judge's ruling upholding the listing of polar bears as a threatened species."

"When it comes to the safety of dyeing food, the one true shade is gray.

Artificial colorings have been around for decades, and for just about as long, people have questioned whether tinted food is a good idea. In the 1800s, when merchants colored their products with outright poisons, critics had a pretty good case. Today’s safety questions, though, aren’t nearly so black and white — and neither are the answers.

"The earthquake that rattled much of the East Coast last week is sparking angry calls from elected officials seeking an immediate reevaluation of seismic risks at two dozen or so commercial nuclear plants around the country, including two in California.

The frustration is directed at members of the federal agency charged with regulating commercial nuclear plants, the Nuclear Regulatory Commission."

"LONG BEACH, Wash. -- When the next devastating earthquake strikes off the Northwest coast, it is expected to send a tsunami so fast that it could leave coastal communities with perhaps 20 minutes to escape the surge of water.

The white-nose syndrome that is decimating bat populations from New Brunswick to Oklahoma -- and spreading -- is "the most devastating wildlife disease in recorded history," according to one biologist. Despite a growing understanding of the complex fungal disease process, scientists are still looking for answers that will help bats survive.

Janet Raloff reports for Science News in the issue cover-dated September 10, 2011. [25]

"Five of the 57 ingredients in dispersants approved by the U.S. Environmental Protection Agency for use on oil spills are linked to cancer, finds a new research report based on data obtained through a Freedom of Information Act request by environmental groups on the Gulf of Mexico."

"Widely grown corn plants that Monsanto Co. genetically modified to thwart a voracious bug are falling prey to that very pest in a few Iowa fields, the first time a major Midwest scourge has developed resistance to a genetically modified crop."

"The discovery raises concerns that the way some farmers are using biotech crops could spawn superbugs.

"A sudden collapse of the government of Syrian President Bashar al-Assad could mean a breakdown in controls over the country’s weapons, U.S. officials and weapons experts said in interviews. But while Libya’s chemical arsenal consists of unwieldy canisters filled mostly with mustard gas, the World War I-era blistering agent, Syria possesses some of the deadliest chemicals ever to be weaponized, dispersed in thousands of artillery shells and warheads that are easy to transport."

"The State Department gave a crucial green light on Friday to a proposed 1,711-mile pipeline that would carry heavy oil from oil sands in Canada across the Great Plains to terminals in Oklahoma and the Gulf Coast."