I mentioned previously that Dopplr were about to add Carbon Footprint data to your travel data, well they made it live today.

I got a serious fright when I checked it first as it had mistaken my trips to Dublin last year as trips to Dublin CA (there’s a Dublin in California?). How likely was it that I was flying to California for a day? Seriously?
Having gone in and edited both the destination and the mode of travel (train instead of plane) my carbon footprint dropped dramatically but is still at around 6.7 tons for the last year! This is something I’ll have to work on reducing obviously.
And this is the very point of this application. Show people how much CO2 they are producing and they can aim to reduce it. If you can’t measure how much CO2 you are producing, you don’t know the effect of any changes you make.
Notice also that the carbon footprint data is calculated by the venerable AMEE. Neat.