footprints

Thought that I was doing pretty well as far as the old carbon footprint goes, but turns out I could be doing better.
From www.carbonfootprint.com:
* Your footprint is 3.53 tonnes per year
* The average footprint for people in Canada is 20.00 tonnes
* The average for the industrial nations is about 11 tonnes
* The average worldwide carbon footprint is about 4 tonnes
* The worldwide target to combat climate change is 2 tonnes

Yeesh.