If a child uses diapers for 2 1/2 years, it will require 897 litres (237 gallons) of crude oil for plastic water proof lining, 715 lbs of plastic, and the pulp from 4.5 trees for the fluffy padding. Stats: http://www.greencontributor.com/index…/human-foot-print.html
In the first year, an American toddler would have generated more carbon dioxide emission than an average person in Tanzania will generate in a life time.
To offset your 20 tonnes of CO2 produced each year, you need to plant 20 trees that live for 40 years (all averages, of course). http://www.carbonify.com/carbon-calculator.htm