Trees are very important for the future and for humanity. It produces oxygen in the world. LAter it can produce petrol for heating for example. There are less and less trees on earth because of deforestation. MEn literally destroyed forests all around the world. It's normal to cut trees to make paper but ot to destroy old and prcious wood for instance, or not to build buildings. I chose an association that fights against deforestation "11 secondes". Every 11 seconds a forest the size of a football field disappears in Amazonia. It's a challenge for J-Cristophe Durel.