In fabled cross-country walk from Ohio, Lummis traversed the desert, Cucamonga and Pomona into L.A. 140 years ago this week. Columnist David Allen has sore feet just thinking about it.

A section of the upper mantle and crust under the Sierra Nevada mountains is peeling away, in a process that may mimic how the continents were formed.

Wildfires in Southern California have prompted major discussions about water in the state. Here's an overview of where water ...

The Palisades, Eaton and Hurst wildfires in Southern California have destroyed more than 12,000 structures, raising the likelihood of a spike in demand for lumber in the months and years ahead.

After weeks of windy and dry weather, rain has fallen in parched Southern California and is expected to aid firefighters who are mopping up multiple wildfires. But potentially heavy downpours on ...

there was still little containment of the Border 2 Fire churning through a remote area of the Otay Mountain Wilderness near the U.S.-Mexico border. The rain was expected to snap a near-record streak ...

In President Donald J. Trump's first 5 days in office, he changed the U.S. position on climate change and fossil fuels in ...

Many climate experts see its deserts as a place to build the green-energy future. For two local activists, the price is too ...

Rain and cooler temperatures will bring relief to Southern California this weekend, after a prolonged stretch of dry, breezy ...

But areas in Southern California's "windiest" mountains will be under red flag warnings until Thursday, 3 p.m. local time. While winds have peaked and will continue to lower into this evening ...

LOS ANGELES COUNTY AND NORTH AND IT’S THE STRONGER WINDS ARE ACTUALLY IN THE MOUNTAINS ... has been issued through Wednesday in Southern California because of potentially dangerous fire conditions.