Carbon Footprint Calculators

Here's a list of what I could find. I found 5) to be the best for household energy use, 6) is good for total footprint including travel, and 3) is cool for showing how one ton of CO2 stacks up in gallons of gasoline, trees planted, pounds of coal burned, etc.

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1) Energy Depot: http://www.energydepot.com
I did the audit and didn’t find it terribly accurate (heating was supposedly $4,000 a year, even though we were only at $191 in the cold February we had). Electric estimates were low -- $300 for the year. They do have a good calculator and library that are worth checking out.


2) Pollution and Electricity use Calculator:
http://www.cleanerandgreener.org/resources/pollutioncalculator.htm


3) Greenhouse gas equivalencies calculator:
http://www.usctcgateway.net/tool/


4) EPA (shows sector percentages and gains from different actions):
http://yosemite.epa.gov/oar/globalwarming.nsf/content/ResourceCenterToolsGHGCalculator.html


5) Home Energy Saver: http://hes.lbl.gov/
Super-detailed, accounts for MI climate, the best one I’ve seen for household energy use.


6) BP Carbon Calculator: http://www.bp.com/extendedsectiongenericarticle.do?categoryId=9008204&contentId=7015209
My favorite all-inclusive calculator.

7) Redefining Progress Ecological Footprint:
http://www.earthday.net/footprint/index.asp#
Shows how much land use you're responsible for; includes diet and consumption habits. Very little detail, though.

8) Safe Climate: http://www.safeclimate.net/calculator/
Not great but popular.