You've heard about how robocars are going to upend the economy. But have you thought about what they'll do to urban space?

This video shows seven years of global warming proposals—and how he did on each one.

California's biggest contributor to climate change is a rupture at an Aliso Canyon well.

Thanks to a host of ingenious tech tweaks, air travel is light-years better for the planet than it used to be.

Officials postponed the auction of an oil and gas development lease until next spring

Hope it’s worth it.