What is your carbon footprint?

I went to a restaurant today to give an estimate for window cleaning and wrote a short blog about one of the things they do to reduce their carbon footprint.

Wagner Window Service - What is your carbon footprint?Window Cleaning Massachusetts | Pressure Washing Massachusetts | Gutter Cleaning Massachusetts

What measures do you take to reduce your impact on the environment?

I have thought about converting everything I run over to homebrew biodiesel