OK, so I am starting to feel guilty about the amount of carbon emissions my travelling creates and am condsidering joining an offset programme.
I have just calculated my footprint, which informs me that 161 trees will need to be planted in order to offset it.
You can calculate yours here
http://www.carbonfootprint.com/calculator.html
I would be curious to see the footprints of JFK and CuriousToyBoy in his heyday!