Cigarette butts could be reborn as green energy storage
But that doesn't mean smoking is good for the planet.
Emails show new EPA chief is cozy with the fossil fuel industry
Scott Pruitt has often worked with the oil and gas firms he now regulates.
Ireland votes to stop investing public money in fossil fuels
It'd be the the first country to officially cut ties with coal and oil.
Satellites could predict the next human-caused earthquake
Radar from orbit can track land deformation from injected wastewater, which is known to cause tremors.
MIT accidentally discovered a cleaner smelting process
There's nothing better than a successful failure.
Infiniti's latest engine is a last hurrah for gas-powered cars
The QX50 has the first production turbo engine to switch between performance and good fuel economy on the fly.
Uber's app can guide its drivers to the cheapest gas
The "Fuel Finder" gives price, distance and turn-by-turn directions.
Drilling makes Oklahoma as earthquake-prone as California
The USGS' new model factors in man-made risks.
Google Maps for iOS displays gas prices along your route
The app now helps you save cash when you're on the road.