
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 Wasting Food is a Bigger Deal Than You Think

Many people don’t realize that throwing away food also means wasting all the energy it took to grow, ship, and store it. When food ends up in landfills, it rots and releases methane—a gas that’s way worse for the environment than carbon dioxide. In the Article" Food Waste and Climate Footprint," I learned that if food waste were a country, it would be the third-largest emitter of greenhouse gases after the U.S. and China. I started focusing on this in my everyday life, while doing this I learned that “best by” dates aren’t always accurate, so I don’t throw stuff out just because the label says so. Cutting food waste isn't a hard problem to fix it just means we have to be more aware.