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A fire burning in Fresno County has reached the McKinley grove of giant sequoias. Several trees are in flames and specially trained firefighters are on their way to put them out.

Firefighters hold the line in the Sierras, protecting communities and a giant sequoia grove amid a day of "dynamic fire activity" from the Garnet Fire.

Angelenos may breathe a sigh of relief as the mercury dips after late summer heat waves. But Bay Area residents could be disappointed after their coldest summer in decades.

The lightning-sparked Garnet fire burning in Fresno County is threatening about 200 giant sequoias trees in a grove considered vulnerable to flames.

The Northwest Wildland Fire Fighting Compact facilitates sharing of firefighting resources and technology amongst U.S. and Canadian members --now including California -- during emergencies.

The BurnBot is a a remote-controlled vehicular system that removes flammable brush alongside roads with unprecedented precision.

Los Angeles landlords may soon be required to keep rental units cool - or at least make it possible for tenants to do so.

A young eagle that had the same dark tail and "Mona Lisa smile" of Gizmo, a baby of internet-famous Jackie and Shadow, visited their nest in Big Bear Valley.

Research shows vast portions of the world are losing fresh water and getting drier. Groundwater depletion accounts for two-thirds of the continents' water losses, contributing to rising oceans.

A group of more than 85 leading climate researchers on Tuesday publicly repudiated a Trump administration report that questions the severity of global warming.