In recent years, the forests have been getting smaller and smaller for more and more people cut down trees for money. As trees grow naturally, people don't need to invest anything on them. But cutting down trees has destroyed our nature. We have already seen the bad consequence. For example, we always suffer from the flood and drought disaster; many animals are facing the danger of dying out, because their habitats have been destroyed; deserts are expanding, and sandstorms are emerging. ...
