Emily Guerin

A new study found that up to 70 percent of the time, emissions controls in heavy trucks may not work. That has big implications for smoggy Southern California.

KPCC interviewed Rep. Dana Rohrabacher and businessman Tom Steyer about President Trump's decision to leave the Paris climate agreement. Here's an annotated transcript.

A phenomenon in which buildings and paved surfaces absorb heat can raise temperatures in cities by as much as 19 degrees Fahrenheit.

For decades, servicemen and women who want to be buried in a veteran’s cemetery in Los Angeles or Orange Counties have been out of luck. The closest cemeteries with space are in Riverside, San Diego or Bakersfield, which makes it inconvenient for families to pay their respects.

The Environmental Protection Agency would see a 31 percent cut — more than any other federal agency. Cuts would affect many local programs in Southern California.

The deputy Interior secretary helps manage a fifth of the nation's land. Nominee David Bernhardt has lobbied on behalf of water and energy interests in the past.

The Department of Interior's 60-day comment period began May 11. The Trump administration is considering altering the boundaries of 27 monuments or even eliminating them.

A project is restoring a 2-acre section of Santa Monica beach to its original state as a dune ecosystem. It's also designed to provide a habitat for animals.

Coyotes have attacked pets and even humans. But with almost no research on what causes coyote-human conflicts and how to prevent them, it's hard to make policy.

Long before it became a national park, miners convinced Congress to reduce Joshua Tree National Monument by a third so they could keep digging for ore.

In their second such report, UCLA researchers give LA county grades ranging from C- to B on categories from transportation to renewable energy use.

Rallies to show support for fact-based research and environmental protection are being held around the world — including in downtown L.A.