Fracking, or hydraulic fracturing, in the Monterey shale may not be possible anymore, as earthquakes have left the area too unstable for companies to turn a profit and now the shale may go untapped. 

A study out of USC last month projected as many as 2.8 million jobs and more that $24 billion in state and local tax revenue in the next 7 years from developing the oil shale. 

Here to explain is Amy Myers-Jaffe, executive director of energy and sustainability at the University of California, Davis.