I recently read a quote which i will paraphrase as; "If we were to be given a tablet or 1 year addition to our lives for every tree we plant, all humans wont even bother to cut them down. But its too bad we only get oxygen from plants." In real sense oxygen is life and we keep throwing it away by cutting trees down. Its a pure satire and we should be ashamed for not figuring and applying this simple knowledge. We indeed belong to mother earth.