Radioactive traces from nuclear tests in the '50s are allowing forensic scientists today to date, and to help identify, human remains.

A new genetically modified plant attracts helpful bugs that attack pests, a development that could one day reduce the need for chemical pesticides.

See how decades of efforts to curb the forces of nature in New Orleans are now giving the city a sinking feeling—literally.

Rain from Hurricane Rita might help dilute flood-borne toxins in New Orleans—but too much rain "could cause havoc" in the city.

Ants with an acid bite can kill some plants and cultivate others, creating phenomena known as devil's gardens, a new study suggests.

How did what was perhaps the most destructive hurricane in U.S. history form? Our video time line tells the tale via satellite images, graphics, and on-the-scene footage.

See the full fury of Hurricane Katrina in video taken by storm cameraman Mike Theiss.

Hurricane Katrina destroyed large swaths of wetlands and barrier islands off the U.S. Gulf Coast, scientists say, and humans are partly to blame for the damage.

A festival this weekend in California's Joshua Tree National Park aims to literally drum up support for one of the most endangered national parks in the U.S.

NOAA meteorologist Chris Landsea tracked the growth of Hurricane Katrina from a series of flights aboard a hurricane hunter aircraft.

In South Africa nonnative triffid weed threatens to overrun a premier nature reserve, displacing rare black and white rhinos.

Due to their need to compromise, wide-ranging treaties like the Kyoto Protocol often end up watered down. Bottom-up methods fight global warming better, three experts say.

Rising ocean temps are fueling stronger, more intense hurricanes, a new study suggests. But not all scientists are warming up to the findings.

The behavior of an unusual seismic fault in Chile could help scientists better understand when and where giant earthquakes are likely to recur.

A blow-by-blow of the historic storm—its birth, its path, its landfall, and its aftermath.