13-year-old Finkbeiner is already the head of his own organization . Plant for the Planet is dedicated to planting trees around the world . Felix Finkbeiner says there are 91 children participating in 100,000 countries . Twitter and Facebook could be used to spread the word on tree events , Finkbeiner told the curious group of youngsters . He says 100,000 trees have been planted so far .
13-year-old Finkbeiner is already the head of his own organization . Plant for the Planet is dedicated to planting trees around the world . Felix Finkbeiner says there are 91 children participating in 100,000 countries . He says 100,000 trees have been planted so far .