Environment

The Sierra Nevada hasn’t provided nearly as much water as predicted. Now the state is struggling to overhaul its snow runoff forecasts.

After record-breaking snowfall at the start of the rainy season, January and February will likely be the driest on record, prolonging California’s drought.

State scientists, who make on average 27% less than state engineers, are trying to negotiate a better deal. “I'm freaking terrified that all of these awesome people that I work with…are going to leave,” one environmental scientist said.

A look at one polluted region — the LA/Long Beach port communities — targeted for clean-air priority under California’s environmental justice law.

Lea este artículo en español. Scarred by industrial landscapes but home to family neighborhoods and parks, Wilmington bears the weight of the region’s high-polluting oil and shipping economy. About 89% Latino, Wilmington is a bustling mecca for vendors selling birria tacos, agua fresca and homemade tortillas on neighborhood streets as an oil refinery looms in the […]

California's environmental justice law is supposed to clean the air for 15 hot spot communities, home to almost 4 million people. But after more than 4 years and $1 billion, it’s still impossible to say whether it's worked.

The 112-square-mile Randall Preserve — a gateway between LA and the San Joaquin Valley — provides a haven for wildlife and a living laboratory for scientists.

California today issued emergency drought rules aimed at wasteful water use. Although snowpack is 150% of average today, climatologists predict dry conditions for the rest of the season. And conservation still lags.

California cities face an array of crippling threats to water supplies: rising seas, extreme weather, drought, contamination, quakes, fires.

California’s air board enacted two first-of-their-kind smog rules for trucks and lawn equipment. They’ll cost billions but cut tons of emissions.