Inventor, engineer and MacArthur Genius Grant-winner Dr. Saul Griffith thought he was an eco-prude, until he audited his total power consumption and learned he burns three times as much energy as the average European, and eight times as much as the average Carribeaner. Watch as he unveils Wattzon.com, a free online tool anyone can use to gain a deep understanding of their total energy footprint - and how to reduce their role in climate change.