According to the post, "Using an electric bicycle instead of an automobile greatly reduces your carbon footprint! The average car emits 1 pound of CO2 for every mile driven. By using an electric bike you will be reducing pollution in the form of CO2, as well as NOX, tire and brake lining fragmants."
So you reduce carbon emissions AND get fit - how coolio is that? :)
You can learn more about electric bicycles at http://www.sbebc.com/ or on their blog http://electric-bicycle-sb.blogspot.com/