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WASHINGTON (AP) — As nasty tornadoes popped up from Kansas to Kentucky, a depleted National Weather Service was in scramble mode.

LONDON, Ky. (AP) — More tornadoes plowed through the central U.S.

Grist explores the possibility of ants to replace pesticides as crops are threatened by climate change.

VANCOUVER — Environment Canada has issued special weather statements for three major highways in the British Columbia Interior.

ATLANTA (AP) — With new innovations and technology, scientists have learned from major tornado outbreaks over the years how to improve safety guidance.

BANFF — Looking out over a budding meadow with blackened tree stumps on the edge of Banff National Park, Cliff White points to a dark thicket of trees where the empty plot ends.

Wildfires have forced more than 800 residents to evacuate their northwestern Ontario First Nation.

Vancouverites are slowly but increasingly losing their view of the starry night sky. 

LAC DU BONNET — Rain offered some help in the battle against forest fires in eastern Manitoba on Friday, but the effort remained far from over.

BANGKOK (AP) — A construction magnate and more than a dozen other people surrendered to police Friday on criminal negligence charges for the collapse of a Bangkok high-rise during a March 28 earthquake .