Scientists are on high alert after spotting a key sign that a US volcano is about to erupt. Huge plumes of steam have been seen rising from Mount Spurr, one of Alaska's largest active volcanoes.

This event would spew multiple plumes of ash rising as high as 50,000 feet into the air ... under 'advisory,' meaning it 'is exhibiting signs of elevated unrest.' 'We have been tracking ...

Homeland Secretary: U.S. to roll out new terror alert system WASHINGTON -- The Obama administration will announce changes to the terror alert system "in the coming ...

Salmonella and Listeria in pet food can impact the health of both animals eating the product and humans who handle it. The ...

Bird flu can cause severe illness, including pneumonia, and even death—with experts on high alert amid fears it could ... is in place and to report any signs of infection to the Animal and ...

An avalanche alert has been issued for some high-altitude areas in Himachal Pradesh for the next 24 hours, the Met office said on Tuesday, as it predicted a wet spell in the state until Friday.