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 >
cars that work with hydrogen
A few months ago the physics students of my institute went to a conference and one of the methods that are being tested to emit less CO2 is the research to produce means of transport that use hydrogen instead of gasoline and emit water vapor instead of CO2, many car multinationals already sell cars that work with hydrogen for example the Hyundai company with the NEXO car. Do you think that it can be a good option to reduce CO2 emissions?