The children and young people of this world do not want to wait any longer for adults to finally begin to tackle the impending global challenges of our day. And they have much to do: They want to save their future – Tree by Tree. We have written this book primarily for people like us – kids and teenagers. Because we are the ones who will have to pay for it if adults cannot fully solve these global problems. With this book we want to show, how great it is to get involved. We will tell you our story: why we act and do what we can so that we can have a positive future. We want to show you how exciting it is to learn more about our world, the climate, and the relationship between them – and how much fun it is to work together with kids from all over the world. Of course we will also tell you, how you can join in with us and become active yourself. Because just talking does not stop the glaciers from melting:: Stop talking. Start planting. – Don’t talk, plant!”