Officials advise residents to monitor conditions and adjust activities as needed, as risks expand beyond sensitive groups.

Multiple wildfires have ignited in Southern California in recent days, as investigators examine unusual possible ignition ...

Firefighters are racing to keep flames away from the Santa Susana Field Laboratory, a former nuclear and rocket testing site.

Authorities are bracing for the possibility that a damaged chemical tank at a facility in Southern California could leak or explode ...

Phoenix bans fireworks on city property and near preserves, allowing fines up to $2,500 and possible jail time for violations ...

Crews responded to the Sandy Fire in the Simi Valley area on Monday. Here's the latest on the fire, home losses and ...

Satellite analysis shows Delhi's summer heat varies sharply across neighbouring localities. The pattern links hotter surfaces ...

Editor's note: We will regularly update this page with new election letters. If you want to share your thoughts on the ...

Wildfire smoke is pushing the Seattle-Tacoma region into unfamiliar territory.

As Dallas works to update its zoning code, data centers have become a focal point. Environmental advocates see an opportunity ...

Three wildfires have burned more than 3,500 acres this week in Southern California and triggered evacuation orders and ...

Firefighters are increasing containment of three wildfires that have burned thousands acres this week and triggered ...