Fracking for Geothermal Heat Instead of Gas

AltaRock has figured out how to use fracking to get more heat out of a geothermal well, but work remains before the energy source can dent carbon emissions.

http://www.technologyreview.com/news/520361/fracking-for-geothermal-heat-instead-of-gas/?utm_campaign=newsletters&utm_source=newsletter-daily-all&utm_medium=email&utm_content=20131021