Other calculators

Here is a list of other online carbon/emissions calculators for comparison:

The earth day network's ecological footprint quiz

http://www.earthday.net/footprint/index.asp

Resurgence Magazine's carbon dioxide emissions calculator

http://www.resurgence.org/resources/carbon-calculator.html

The carbon footprint calculator from CarbonFootprint.com

http://www.carbonfootprint.com/calculator.html

A personal emissions calculator developed by the EPA

http://www.epa.gov/climatechange/emissions/ind_calculator.html

The SafeClimate's calculator is a project of the World Resources Institute

http://www.safeclimate.net/calculator/

A carbon calculator created by Carbonfund.org

http://carbonfund.org/site/pages/calculator/

The National Energy Foundation's emissions calculator

http://www.nef.org.uk/energyadvice/co2calculator.htm

Other lists of calculators

This list by COIN also rates and gives comments on the calculators

http://coinet.org.uk/materials/carboncalculations

A list of emissions calculators compilled by The Commons

http://www.ecoplan.org/general/responsibility.htm#calc