Here's a nifty little site that will help figure out your carbon footprint.

Carbon Footprint Calculator

Mine was 18 even.

   

It's the 2 vehicles and the travel that killed my score.

   

11.8 tons, not that it matters, since CO2 isn't a pollutant. It isn't what's causing global warming, just as it isn't what's causing global warming on mars http://www.space.com/scienceastronomy/m ... 31208.html

   

I scored a 22 because of our 2 cars. Without the cars I would have scored about 5.