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 >
Healthy Food
All food is made up of nutrients which our bodies use. There are different kinds of nutrients: carbohydrates, proteins, fats» vitamins and minerals. Different foods contain different nutrients.
Before we cut down on fat, sugar and salt, we have to know a bit more about the kind of food these things might be in. The biggest problem comes when these things are hidden in other foods: biscuits, crisps, sausages, meat pies, soft drinks and so on.The food we eat, depends on lots of things. Taste is a big factor. Culture, religion and health also play a part in what food we eat. Advertising and social factors also have a big influence.