1. In hydraulic fracturing, a slurry of water, sand, and chemicals is blasted at high pressure through a well pipe that reaches a mile or more into a layer of shale. There, the high-pressure fluid cracks open the porous rock, unlocking trapped oil and gas and releasing it to flow back up the well. Like all energy extraction methods, fracking has a multitude of environmental impacts, but one critical question will determine fracking’s future: Does fracking contaminate drinking water? 

    The politics of fracking

     

  2. If trends continue, solar energy prices could be competitive with coal by 2020.

    Get ready for a massive renewable energy boom

     

  3. America has an energy addiction

    (Source: theweek.com)

     

  4. Cartoon of the day

    Gary McCoy, Copyright 2012, Cagle Cartoons