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 >
The future of energy
I think that fossil sources currently have such a big influence on the global energy market, that it is impossible to think that renewable sources will succeed in replacing oil or coal in the short term.
Fortunately, renewable sources are expanding at an ever faster pace and probably by 2050 a good part of the energy will be produced from sustainable sources.
The real question is if our planet can wait so long.