Ecological Footprint

This week we had to go to this website to find out our ecological footprint. http://www.footprintnetwork.org/en/index.php/GFN/page/calculators/.
The reason behind this website was to find out how our lifestyle impacts earth if everyone in the world lived like we did. After I took the quiz the website told be it would take 5.4 total earths to support everyone if they all lived the way i do. Afterwards it gives some options that we could do in order to change our lifestyle and even if I checked off all the options given, it still says it would take 4.6 earths. Some options included changing my diet because the foods i buy are from far away farms and is high in animal products. Another is to pledge to buy products that require less packaging and use 100% post consumer recycled products. It seems to me that according to the quiz, the thing that influences the outcome the most is the electrical land used. That doesn't seem like something i can control to much. I have no control on how the electrical company makes the energy I can only control how much I use. I do my part in driving an ultra low emmisions vehicles however because I live over 25 miles away from school I am forced to drive over 300 miles a week. I could say I need to car pool but in my situation it is unlikely that it would happen enough to make a difference.