It may be that the value of travel and the lessons one learns from it can outweigh the carbon footprint of the trip (although I still bought offsets) . In North America, we look at the changes we are making in our lives like Puritans, that it is the right thing to do even if it hurts. In Paris, they naturally live a lower carbon, greener lifestyle because of the design of their city and the way things work there. And they have a lot more fun doing it.
Credit: Lloyd Alter