A key zone of the Pacific Ocean is already at record warmth. See how rising sea temperatures could impact global weather. These forecasts will be updated regularly.

Images and maps show how the Old Trails Fire pushed beyond familiar danger zones in Washington.

The aggressive pace of expansion has alarmed advocates who say the construction will destroy pristine country, threaten endangered species, and cut off access to sacred Indigenous and archaeological s...

As the planet warms, subway systems around the world have struggled to cope with floods far beyond what they were originally designed to handle.

The past six summers have been the smokiest on record. New research shows that smoke could become the costliest consequence of climate change for Americans.

Meteorologists are launching fewer weather balloons across the United States as the National Weather Service loses staff. Some worry forecasts will suffer.

For at least half a century, the National Weather Service has been an around-the-clock operation. That is no longer possible in parts of the country.

One in 8 Californians now live in places at risk for the kinds of devastating wildfires that tore through Los Angeles this winter, according to a Washington Post analysis of new state fire maps.

Since 2010, sea levels at a gauge in Savannah, Georgia have risen by more than 7 inches. Similar trends in sea level rise are happening across the U.S. South.