Gas-powered cars and diesel trucks remain the state’s largest sources of smog and soot despite decades of cutting emissions.

Gas-powered cars and diesel trucks remain the state’s largest sources of smog and soot despite decades of cutting emissions.

Elon Musk escalated his public attacks on President Donald Trump Monday, suggesting his administration withheld findings ...

Following the shooting death of a Democratic Minnesota lawmaker in June, Assemblymember Mia Bonta wants to beef up a state ...

High-speed rail has been dogged by cost overruns, construction delays and political fights since 1996, when California ...

President Donald Trump on Monday placed a 25% tax on goods imported from Japan and South Korea, citing persistent trade ...