Tsunamis pose a risk to the entirety of the California coast. But should a major one strike, how bad could it be?

Scientists have, for the first time, detected a landslide-generated tsunami using satellite data from a research ship.

A new online portal by NASA and the Alaska Satellite Facility maps satellite radar meas-urements across North America, ...

Climate change has locked in at least 75% of glacier loss in Western Canada and U.S., raising concerns for downstream ...

Climate change has put Western Canada’s glaciers on track for devastating loss over the coming decades, with the southern ...

Mountaineering rangers in Alaska have recovered the body of a Seattle man who died after falling 3,000 feet from a climbing route on Mount McKinley ...

The Interior Department plans to repeal Biden-era protections across the state’s ecologically sensitive North Slope.

Alex Chiu, 41, was ascending Mount McKinley's West Buttress climbing route with two others on Monday when he fell at a spot ...

The National Transportation Safety Board says a helicopter crash has killed two people on Alaska's remote North Slope.