A provincewide state of emergency was declared in Alberta as more than 110 wildfires burned across the province, while two out-of-control wildfires burned in British Columbia.

Warmer temperatures are melting the state's historic snowpack. Already flooded communities downstream are scrambling to prepare for the surge.

Rising rivers are stranding endangered riparian brush rabbits in California. Wildlife officials are searching out and relocating hundreds of them to help protect the species.

Warmer sea waters have many far-ranging effects. In the new pattern, some parts of the U.S. could get relief from drought, while others might see fewer hurricanes.

The humanitarian aid group Border Kindness leaves water and other aid in areas along the U.S.-Mexico border. They say people are ill-prepared for conditions on uncharted trails.

California approved a rule limiting rail pollution to aggressively cut greenhouse gas emissions in the state's latest move to establish itself as a global leader in the fight against climate change.

California's year of endless storms has seeded superblooms of wildflowers and provided a boost to some of the state's endangered ecosystems.

Melting glaciers are leaving behind unstable lakes around the world. Millions of people live downstream, in places increasingly threatened by deadly flash floods. What will it take to protect them?

The Biden administration catalogued 175,000 square miles of old growth and mature forests on federal land. It plans a new rule to better protect woodlands from fires and other climate change effects.

A new report from the conservation group American Rivers names a stretch of the Colorado River, the Ohio River and eight other rivers as endangered.

As Western wildfires get more destructive, scientists are finding a far-off connection to shrinking ice on the Arctic Ocean.

The island is facing one of its worst dry spells in a century, and both the agricultural and high-tech sectors are competing for scarce water resources.

An estimated 15 million people are threatened by floods that happen when glaciers melt rapidly. Nepal's Himalayan communities are on the front lines.

Atlanta's ozone pollution is the fourth worst of cities in the Southeast. The Lung Association uses data from 2019 to 2021 in its 2023 report.

Ice in Antarctica is melting rapidly. That's driving sea level rise around the world. But some places are threatened more than others, and Texas is in the crosshairs.