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 >
Why we need to counterattack The greenhouse effect now
A new study published in Proceedings of the National Academy of Sciences predicts an ice-free summer in the arctic sometime between 2054 and 2058. Previous models have predicted full Arctic melt as early as 2011 and as late as 2098. If the Arctic were to melt the worlds sea levels would rise uncontrollably affecting millions of people.