I have a client who is wants to post a "carbon impact" calculator to their website.
They want the calculator to be easy to use, about 300-400 pixels wide and calculate the users "carbon impact" using the formulas from the epa calculator.
Any other suggestions on how to incorporate this into a website and help in the "green energy" movement are welcome.
Ideally I would like to see a working example on a site that you have done.