Calculators

Home http://www.footprintnetwork.org/en/index.php/GFN/page/calculators/

Business http://www.carbonme.org/ 

School http://www.epa.gov/climatechange/kids/calc/index.html 

Consumers  http://sustainability.publicradio.org/consumerconsequences/ 

Campaigns http://www.earthday.net/mediaecofootprint