Danger warnings as heat wave hits western US

A dangerous heat wave was building over parts of the western United States Tuesday, with forecasters warning of rocketing temperatures in an early taste of a possibly brutal summer for the region.

From ashes to alerts: Science helps protect Colorado travelers

In the summer of 2021, travelers in Colorado's Glenwood Canyon were safely evacuated before massive mounds of mud and rocks buried highways and destroyed bridges, thanks to a debris flow warning system developed in part by ...

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