Pupils in 2L CSPE calculated their Ecological Footprint in a number of categories: water use, food, transport, shelter, energy use, clothing & stuff. They then calculated their total Personal Ecological Footprint, that is the number of Earths that would be needed if everyone on the planet lived and consumed as they do. They also calculated the number of acres of land needed to support their lifestyle. Check out some of the best posters in the Gallery below.