A new bill would take gasoline use in the state back to the 1960s, a time when California’s population was close to half of what it is today.
The country's economic slowdown might actually be helpful for the environment.
If Senate Bill 350 passes, California utilities would need to get half their electricity from renewables in 15 years.
Hyperloop Transportation Technologies plans to break ground on a test track next year.
Costa Rica has set an ambitious goal for itself: To be entirely carbon-neutral by 2021. But it’s really not that crazy.
The real problems with a controversial, retracted study weren't about the science but about respect for the subjects' values.
Coal-mining and oil-drilling programs on federal land are big money-wasters, in addition to polluting the environment and hurting the climate.
Researchers have figured out a way to transform everyone's favorite greenhouse gas into a super-strong and lightweight wonder material.
If climate change isn't a strong enough argument, a new Google Maps feature will make the solar decision a whole lot simpler for you.