San Francisco and Berkeley want to apply the tobacco-labeling approach to fuel.
And other alarming details from the city's latest climate change report.
Is this an encouraging sign in the fight against rising sea levels?
Extreme heat, record-breaking floods, and a terrifying tornado in oil country -- all in all, a year we can't afford to forget.
The fingerprint of climate change is as visible here as the big letters on an eye chart.
The increase in ice may actually be a sign the warming continent is in trouble.
In the U.S., we're living in two countries: one scourged by heat and the other bitten by cold.
Rising sea levels have kicked up flood days by as much as 900 percent along parts of the East Coast.
Biologists say the majestic swimmers' "pump" mechanism filters the oceans of carbon.