Los Angeles and smog have been synonymous for decades. But the last smog alert happened in 2003, and lead has virtually disappeared from the air.

Longtime member and historian of the Wasatch Mountain Club Debra Frank shares its history in her new book "Faint Heart Never Climbed a Mountain."

The Department of the Interior is giving at least 20 trails more signage and marketing. Many could be in the West, including Utah's Bonneville Shoreline Trail.

White sturgeon are a dinosaur-like fish that can live for decades and grow longer than a pickup truck. They're not native to Utah. So why is a state agency introducing them?

The new U.S. Forest Service chief pointed to an already devastating wildfire season, arguing active management is critical to wildfire resilience and the long-term health of forests.

In other news, crews made progress on the massive Cottonwood Fire but don't have the resources to put it out completely. And, the agency backing the Stratos data center project hired a new director.

Thousands of firefighters are deployed in the Great Basin region, which includes almost all of Utah and parts of surrounding states.

A recent study from University of Utah scientists and other experts found that carbon markets aren't accounting for the increased the risk of fire, drought, and insect damage from climate change.

Salt Lake Tribune reporters Palak Jayswal and Brooke Larsen talk about Utah's top stories, including plastic surgery trends and the return of Glen Canyon’s once lush ecosystem as Lake Powell drops.

Gov. Spencer Cox issued the emergency order on Thursday as wildfires rage across the state, including the devastating Cottonwoods Fire near Beaver.