Partial blue skies in the morning allowed many park visitors to ignore fires on the North Rim. By afternoon, ashfall made for ...

In this issue of our environmental newsletter, we learn why the City of Toronto thinks spending $1.4 billion to renaturalize ...

A triple-digit heat wave will arrive in Southern California on Wednesday, affecting inland communities, increasing health concerns. A KCAL News Next Weather Alert is in effect through Friday for the ...

Southern California braced for critical fire weather and heat-related illnesses as several parts of the region are expected to approach or reach triple-digit heat. Above-normal temperatures are ...

With rising costs and delays, California risks losing public trust in climate action. Explore ways to reform policy and boost clean energy projects.

ANCHORAGE, Alaska (AP) — Communities along a 700-mile stretch of Alaska’s southern coast ordered residents to higher ground ...

A powerful new online tool from CAL FIRE is giving the public a clearer look at California’s wildfire history and helping the ...

A heat dome​ is trapping over 90 million Americans in extreme temperatures this week with the National Weather Service​ issuing heat alerts from Nebraska to Florida.

A moderately strong heat wave is taking shape inland, but its reach will be uneven and the coast may barely feel it at all.

Key takeawaysShade is the most effective, low-cost way to keep people cool outside, but urbanized areas of Los Angeles County ...