These are thoughts that I had on this topic. Fact: 1.) Burning of fossil fuels leads to release of CO2. 2.) CO2 is a greenhouse gas that leads to warming of the planet, and all of us are directly responsible through the burning of CO2. Therefore 480 gallons of gas releases 9600 lb of CO2 per year. Since we have to reduce our carbon emissions by a lot, why don't I arbitrarily ask if it is possible to reduce emission by 90%, that is go from 9600 lb of CO2/year to only 960 lb of CO2/year. We need a 10-fold improvement in GHG emissions reductions What are possible menu options one could chose from to get to this point? 1 .) Reduce the distance from home to work The fold improvement is a direct result of how much closer one can move to work. For instance, if one were to reduce the distance to commute to work by half, this would lead to a 2-fold reduction in GHG emisions. There are other side benefits of moving closer to work which include reduced car maintenance costs