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

Featured blog: Nanomagnets and wires point to a potentially better mousetrap — or crude trap — for dealing with oil spills.

The number of coastal areas known as dead zones is on the rise. A new tally reports more than 400 of the oxygen starved regions worldwide.

The length of bonds connecting water molecules could demonstrate quantum effects and help explain some of water’s weirdness.

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.

Uncooked fish can host detectable concentrations of potentially toxic chemicals — pollutants that cooking can make disappear,