Ad agency Leagas Delaney in Hamburg, Germany, came up with these clever posters for Plant for the Planet, an organization that stemmed from a 9-year-old's school assignment.
A few years ago, 9-year-old Felix Finkbeiner was given the task of writing a school report about climate change. While working on the report, Felix ran across the story of Kenyan environmental activist Wangari Maathai, who worked to plant trees across Africa. Felix proposed that children from across the country could do the same thing. He suggested a goal of planting 1 million trees, starting with his own school who planted the first tree in March, 2007.
Felix was elected to the United Nations Environment Programme and his school project turned into a real organization. In 2011, they reached their goal of planting 1 million trees. Now, how cool is that?