Alleged eco-hero Al Gore quotes Gandhi: "We must be the change we with to see in the world"

From his book "Earth in the Balance", page 14

Check out a partial list of Gore's recent fossil-fueled travel here

Obviously, Al Gore's personal "carbon footprint" is massive. As I dug deeper into Gore's own energy use, even I was surprised at the extent of the absolutely cartoonish gap between his words and his actions.

Question: If all 6.7 billion of us consumed fossil energy at Al Gore's pace, how long would the Earth's fossil fuel supply last?