Tainted infant formulas point to a problem in the way society values moms.

Featured blog: Sixty-one Nobel laureates sign a letter explaining why they support Barack Obama's run for the presidency.

Using microbes to convert PET into a high-value plastic could encourage more recycling.

Removing carbon dioxide from smokestacks and storing it permanently is one of the possible solutions to global warming, but remains expensive to do. A new technique could make carbon sequestration economical on a large scale, while producing useful materials on the side.

A panel of scientists involved in the anthrax investigations released new details.

Featured blog: FDA accords some trans fats a "generally regarded as safe" designation.

Emerging data indicate that tiny and toxic particles polluting urban air chemically morph from hour by hour, depending on what other pollutants these particles encounter during journeys that can run hundreds of miles.

Federal climate policymakers should have a grounding in basic chemistry.