Energy Policy, by Evan Mills, PhD and Staff Scientist at Lawrence Berkeley National Laboratory, 2012.

We usually only post very current reports and articles, but this one is so relevant and a new topic of interest for many, that we decided to go ahead and list it.

"This article presents a model of the modern-day production process—based on public sources and equipment vendor data—and provides national scoping estimates of the energy use, costs, and greenhouse-gas emissions associated with this activity in the United States."