Watching a Ridge Slide in Slow Motion, a Town Braces for Disaster

Every day a mountainside looming over Interstate 82 and the Yakima River slips another few inches. Experts believe it will collapse, but they don’t know when.

Rescuers Search Montecito for Mudslide Survivors as Death Toll Reaches 15

More than two dozen were injured as a vast area northwest of Los Angeles, recently scorched in the state’s largest wildfire on record, became the scene of another disaster on Tuesday. The authorities said that another two dozen people were unaccounted for.

To Test for Climate Disasters: Build Stuff, Then Blow It Apart

A team of researchers is destroying things — with wind, water and fire — to help insurers manage the increasing risks of extreme weather.

Trump Ignores Climate Change. That’s Very Bad for Disaster Planners.

The Federal Emergency Management Agency is trying to prepare for bigger floods even as the White House is hostile to talking about climate change.