Powerpoint about energy consumption

Here's a link to a page which contains a great powerpoint. The link for the powerpoint is at the top of the box on the upper right of the page. This powerpoint is from Nate Lewis, a chemistry professor at the California Institute of Technology. It talks about calculated values for mean energy consumption and breaks down the energy consumption into the specific sources of energy. Also, the powerpoint gives info on a variety of carbon-free power sources.
Powerpoint