Pesky pollutants that persist, courtesy of nature

In the late 1970s, the United States banned the production of an assortment of synthetic pesticides, insulators, coolants and flame retardants due to their toxicity and the fact that they stick around for a long time. But ...

Sex in the city: Peregrine falcons in Chicago don't cheat

Peregrine Falcons, in their normal habitat on isolated cliffs, mate for life. But some 25 pairs now nest on Chicago skyscrapers and bridges, and city living has them in much closer quarters than they used before humans dominated ...

Simulations aimed at safer transport of explosives

In 2005, a semi truck hauling 35,000 pounds of explosives through the Spanish Fork Canyon in Utah crashed and caught fire, causing a dramatic explosion that left a 30- by-70-foot crater in the highway.

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