Climate

Colorado mudslides wreak havoc on major transportation route
Interstate 70 in Colorado's Glenwood Canyon remains closed because of damage from mudslides — the latest in a string of closures over the past two years on the key transportation corridor through the Rocky Mountains.
Why you should protect yourself from the smoky air
Much of the state will be blanketed by smoky, unhealthy air well into next week. Health experts say the polluted air can be harmful even to healthy people. The fine particles in wildfire smoke are smaller than a human hair and can penetrate into the sensitive tissue deep in our lungs.
Finding climate history in the river bottom
The current drought is helping researchers who are studying the history of flooding in the Red River Valley. They’re collecting samples of old trees buried in the muddy river bottom to help build a regional climate picture going back hundreds of years.
Wildfires merge in California, burn more homes
California's largest wildfire merged with a smaller blaze and destroyed homes in remote areas with limited access for firefighters, as numerous other fires gained strength and threatened property across the U.S. West.