In “Smog and Sunshine,” UCLA’s Ann Carlson tells of the scientists, lawyers, government officials and community members ...

Add Yahoo as a preferred source to see more of our stories on Google. Brooks Hubbard with the U.S. Army Corps of Engineers takes photos from the historic North Broadway Bridge over the Los Angeles ...

The Los Angeles region has some of the most polluted air in the United States, failing to meet standards set by the Environmental Protection Agency for the last decade. Now, Caltech researchers have ...

Add Yahoo as a preferred source to see more of our stories on Google. Smog hangs in the air as the sun sets on downtown Los Angeles in October 2023. (Luis Sinco / Los Angeles Times) The U.S.

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. Los Angeles this month marked an ...

Scientists who scanned the skies above dozens of U.S. cities have made a surprising discovery about the smog that’s suspended over Los Angeles: one of its key ingredients isn’t disappearing as fast as ...