Urtin is an alien child who comes to visit the Earth with his parents. During your travels through our world, discover the wonders of this planet and also the stupid and intelligent things that human beings are doing. The space child in his visit leaves a message to all the children of the Earth and tells him that they should take the future of their planet in their hands, since it is also their own future.Our world has to radically change the bases that sustain its economy and redirect it towards sustainable development. This story for children aims to educate children about sustainability and learn the principles on which sustainable development is based and their commitment to the fight against climate change. Thus children will find useful knowledge in this book that will accompany them all their lives.