In my high school we have a certification called E3D. This means that we are a high school that takes care of the environment. For example, at the cafeteria, we eat organic and local food when it is possible, vegeterian meals ares available. In addition, some students have volunteered to became stainable development ambassadors to create projects and proposes initiative like the use of Ecosia in our computer. And when we use it, tress ares planted.