How to Reduce your Carbon Footprint
Carbon Calculators
http://icountcarbon.net/index.htmhttp://www.nature.org/greenliving/carboncalculator/
http://www.footprintnetwork.org/en/index.php/GFN/page/calculators/
Carbon calculators for Kids
http://www.cooltheworld.com/kidscarboncalculator.php
Click below to measure the Carbon Footprint in 1900
http://icountcarbon.net/1900_carbon_footprint.htm
Click below to measure the Carbon Footprint in 1750
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