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Making the Imperial Valley a safer place to breathe.
Pumas and other wildlife are still being exposed to deadly second-generation rat poisons, prompting groups to call for widening a 2014 ban.
Explore why Californians like visiting the beach, and what prevents them from doing so.
Nearly half the hundreds of fish samples taken from 26 Los Angeles sushi restaurants over four years were wrongly labeled.
Five new Northern California coastal properties and an ecologically important group of offshore rocks in the O.C. join the state's largest National Monument.
Obama's designation of the Mojave Trails National Monument raises the stakes for the Cadiz Project.
With mass extinction in progress, we can't afford to wait for data. Citizen scientists help gather that data a lot faster.
Water, wingnuts, wildlife, and Washington DC figured large in our 2016 coverage.
These ten stories captured your attention in 2016.
A scaled-back alternative to the Delta Tunnels is completely new, and must go through thorough environmental review.
It’s likely that Dianne Feinstein won’t be remembered for the desert lands she helped save, but for the damage she did to the Bay and Delta.
Better fencing could have directed P-39 to a nearby tunnel crossing, say biologists