More than half of the wastewater injection wells being used by frackers in the state are within 10 miles of a recently active fault.
America could go dark for up to 18 months if terrorists struck a few key points along the grid. Small-scale solar could make the system more resilient.
U.S. Fish and Wildlife plans to help California salmon bypass drought-shriveled streams by trucks. Yikes.
The Gulf-wrecking corporation is now free to win federal contracts again, after a 16-month suspension because of the Deepwater Horizon mess.
If the quakes are found to have been caused directly by fracking, not by disposal of fracking wastewater, it would be the first such confirmed case.
In a list of 15 national problems, only race relations is less of a concern for Americans than climate change, according to a new Gallup poll.
The blast was the deadliest of its kind in the U.S. since a natural-gas pipeline exploded in San Bruno, Calif., in 2010, killing eight people.
A new study suggests we've been underestimating the amount of fish in the oceans by a factor of 10 -- but that doesn't mean we get to drive bluefin tuna to extinction.
San Francisco is clearly vying for the title of Most Sustainable City in the United States.