The salty, toxic wastewater that's used in hydrofracking and other gas drilling is likely to blame for small earthquakes in the Midwest, a new study from the U.S. Geological Survey concludes. The water is pumped deep underground, where it lubricates faults and causes them to slip.
Much of the waste that results from Pennsylvania's drilling for natural gas is being shipped to Ohio, where it's injected deep underground. Some of these injections are suspected of causing earthquakes in the Buckeye State.
The U.S. is facing a growing surplus in natural gas. Renee Montagne talks to Amy Myers Jaffe, of the Energy Forum at the Baker Institute at Rice University, about the glut. She expects some consolidation in the industry.
America's reliance on coal to produce electricity has declined by more than 20 percent in recent years — but it is exporting coal at a rate not seen in 20 years, according to the AP. Much of the new surge in coal exports comes from Japan and South Korea.
A bill that would have required Maryland utilities to get a certain amount of their power from offshore wind died in committee, scuttling a big push by Democrats to expand renewable power in the state.
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