Bay Area tech companies are building powerful artificial intelligence systems that experts say could pose “catastrophic risks ...

New funding powers an effort to plant trees in West Oakland. The program must overcome decades of disinvestment and city ...

Social Security — one of the most trusted institutions in American life — is facing an upheaval that’s alarming staff and beneficiaries.

California is developing new policies to promote electric vehicles after Congress and the White House cut EV subsidies and ...