Rewilding is an exercise in imagination—and optimism. In this issue, we follow California condors north, and consider the ...

Although the Legislature just shot down a bill to assess the possibility of reintroduction, the idea and debate persist. And everyone's got an opinion.

A blackpoll warbler at the Farallones. Researchers used feather DNA to look into the origins of six species of warbler ...

Cheryl Patel, field investigator & community science coordinator at Baykeeper (far left) leads the HABs monitoring with volunteers at Alameda Waterfront Park in Alameda. Amir Aziz/Bay Nature In 2022, ...

The California Department of Pesticide Regulation found pet pesticides in the state’s surface waters. Topical flea and tick products going down the drain and ending up in wastewater when pets are ...

This could be a shipyard, if California Forever succeeds in its plan. As seen from Sherman Island, this stretch of water is a key ecological transition point between the salty Bay and fresher Delta.

August 13, 2026: As forecasts have changed, we’ve updated the text to indicate that a “very strong” El Niño for this fall and winter is almost certain. The Climate Prediction Center is also now ...

After decades mapping municipal streetlights, Rick Staychock could see that artificial intelligence would soon come for his job. At 56, he decided to pivot. Now, Staychock has turned towards a field ...

Michael Herz and Kate Josephs decided that to make their podcast about the San Francisco Bay, it would be best for them to live upon the San Francisco Bay. Amir Aziz / Bay Nature Four years ago, ...

A gray whale surfaces in the waters off San Francisco. Michael Pierson YERBA BUENA ISLAND—Summer fog covers the Bay, so we can’t even spot Angel Island, let alone a gray whale. But Gary Reed, director ...

Redwoods peek above a blanket of gray as fog rolls into Bay Area valleys, dripping down to nourish ferns and mosses below. In San Francisco, tourists shiver in the billowing gloom, fooled by the ...

California Forever has announced plans for a 7,500 acre shipyard along 6.5 miles of undeveloped riverbank in the Montezuma Hills. It would be the largest greenfield shipyard in recent memory in the ...