Climate & Environment

3.5 and 3.9 magnitude quakes strike near Ontario, small aftershocks continue

The quakes hit about 30 minutes apart with the stronger one coming second.

A cluster of earthquakes re marked by circles just south of an airport.

It's 100 degrees this weekend. When will our misery end?

It's been so hot for so long, we've lost track of how many days of 100 degrees the region has endured — and the end won't come this weekend.

The sun sets over the ocean and people stand in the water.

Here's how SoCal train operators are responding the extreme heat

Train track inspectors on the lookout for what are known as "sun kinks."

A person sits at a control panel with their back to the camera as we see train tracks running in the middle of a main roadway out the front window.

Line Fire grows to more than 25,000 acres, stronger winds forecast for Tuesday

Crews are working in high heat and tough terrain in the San Bernardino Mountains. The number of threatened structures increased to 8,000 structures, including homes and businesses, as of Monday night.

A green fire truck is parked near a large plume of smoke.

What's behind (or underneath) the landslides in Rancho Palos Verdes? We asked a geologist

We explain the geology behind the mile-long and mile-wide landslide complex uprooting homes and families in Rancho Palos Verdes.

Little relief in sight as SoCal braves hottest day of the heatwave. How to stay safe and what to expect

The heat will stick around through next week, with Saturday expected to be about 5 degrees cooler.

Two people are silhouetted in a red sky as the sun sets on the horizon.

They went fast! The city of LA says signups for free AC units are now at full capacity

The event was for Angelenos aged 60 and older.

A man hands another man a bottled water at a pop-up tent.

SoCal is baking. Here's how to know the (crucial) difference between heat exhaustion and heat stroke

Both are unpleasant, but one can be fatal. We break it down.

A view of a Black child as he stretches his hands up to enjoy water misters outside on a hot day. In the foreground, a Black person walks by in the sunlight.

Extreme heat in inland communities is getting even more dangerous. What we know about the trends

Inland communities with big population booms will experience the most extreme heat days under climate change projections. The combination puts more people at risk — and many cities are unprepared.

A person fills a water bottle next to an empty tennis court

Extreme heat and gusty winds create elevated fire danger. How to stay safe

Yesterday was hot. Today and tomorrow will be scorching.

A placard reads: Cooling Center Now Open outside a green door labeled Mid Valley Senior Center

Job killer or neighborhood protector? Proposed warehouse rules divide Inland Empire

Supporters say a bill would shield neighborhoods from traffic and deliver cleaner air. But business groups warn it could threaten jobs in a booming industry.

A large square building at the end of a cul-de-sac in a residential neighborhood is seen with snow-capped mountains in the background.

Looking to beat the heat? Avoid these LA County beaches

The bacteria levels in the water once again exceed state health standards for beaches across San Pedro, Santa Monica and Malibu.

A huge crowd of people with umbrellas on a beach.

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Climate & Environment

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