Students from around the world calculated their class mean and standard deviations for their footprints and posted them on our world map.
Do you see differences across the globe? If so, why do you think those differences exist?
Did you use the calculator to try to reduce your footprint down to the average from a citizen of another country? What changes would you have to make to lower your footprint in this way? Are you going to try and take some of these actions in your daily life?
Student Footprints >
Lightbulbs
We really don`t pay much attention to them but just taking one out and replacing it with a fluorescent light bulb can take away about 1,300 pounds of carbon dioxide. This would greatly decrease our home carbon footprint. And if the US all switched to fluorescent bulbs, all that electricity we pay on lighting can be split in half.
I agree, fluorescent lightbulbs are a great way to lower CO2, but LED bulbs can help do that as well. LED's last for a substantial mount of time and you wouldn't have to replace them as often. LED's also don't contain mercury like Incandescent bulb or fluorescents do. They also admit 451 lbs of CO2 per year, compared to 4500 lbs and 1051 lbs. LED also cost less than CFL's and Incandescents, so not only would you help save the environment, you would also save money.
Here's a link to a comparison chart with more information:
http://www.designrecycleinc.com/led%20comp%20chart.html