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 >
Limit Traffic lights
If we can limit traffic lights in the community it would limit the amount of carbon dioxide in our atmosphere because the cars are not stuck sitting in one place but the cars would be moving. Limiting traffic lights may be dangerous because of road safety but figuring out how to speed up traffic so cars are not sitting in one place.
This is a horrible idea. There would be an increase of accidents since most accidents today already occur at intersections.