Of apples, oranges, rhetorical tricks, and first principles

DSEC was in Enfield this evening—part of the presentation was Don Siegel speaking on water and fracking. That reminded us that we had this in the DSEC video vault from summer, 2011:

Dr. Don Siegel, who teaches earth science at Syracuse University and is a former hydrologist and geochemist for the US Geological Survey, says the risks of hydrofracking have been exaggerated.