(a) There are many different measures that we all can take to protect our environment, however the most popular method that we can do this is to take public transportation. Stepping out of your personal vehicle, and stepping onto a means of transportation that is public based is a wonderful way to reduce emissions, reduce your carbon footprint, and enhance the overall air quality of your community. Public transportation savings include just over one billion gallons of fuel, as well as one and a half million tons of the dangerous emissions of carbon dioxide on a yearly basis.