State lawmakers passed an ambitious climate bill, but it might be undermined.
Air pollution during the worst smoke waves is expected to worsen more than 400 percent.
Scientists try to narrow in on the way warmer, weirder weather helped the disease spread.
As if the state's firefighters weren’t already busy enough.
El Niño winters normally flood the state with rain and snow -- but this one was different.
Ocean acidification is bad for crab larvae, and the fishermen who rely on them.
A new study compares the probability of coral-bleaching ocean temperatures occurring with and without the effects of global warming
The ballot initiative sparked a debate over what's better: a carbon tax or cap-and-trade.
No surprise that floods are getting worse.