Investigators asked that question for weeks after January’s storm. The answer involved San Diego’s biggest crises.

Researchers from San Diego State University and UC San Diego are back in the Tijuana River Valley after pulling out last week ...

The Sierra Club is suing the Imperial Irrigation District over its latest Colorado River water conservation agreement, ...

Several San Diego County beaches are closed to swimmers and surfers because of high bacteria levels, according to county ...

It’s increasingly apparent that one factor in California's expanding homeless crisis is a lack of coordination and ...

The Environmental Protection Agency and state health officials are contesting a recent discovery of hydrogen cyanide in the ...

Extreme heat in South San Diego worsens air quality due to Tijuana River Valley pollution, prompting indoor stay advisory.

Researchers from San Diego State University and UC-San Diego say they found dangerous levels of hydrogen cyanide.

Southern California communities face health risks from intensified odors amid a heatwave, which stem from the ongoing Tijuana ...

Dangerous levels of toxic gas have been found near the Tijuna Rivery Valley. Monday, City leaders joins medical researchers ...

County air quality and public health experts combat alarm over toxic gas reports from university researchers in South Bay.

The Carlyle, New York, U.S. Four Seasons at The Surf Club, Surfside, U.S. Hotel Bel-Air, Los Angeles, U.S. Aman New York, New ...