"Citizen's Greenhouse" is a project about environment, but from a technological view-point. We want to bring the participants together to explore this area of our lives and see how we can do something about the severe environmental issues around us. The objective is to have smarter and more environmentally aware young people in our society that actively try to solve issues around us. Another objective is to unite people, gain new friends and contacts so that we can engage in even bigger projects in the future.