This is an essay written by W.S Merwin. In this essay he talks about chopping and unchpping a tree. Unchopping a tree is impossible. If we try we may join the parts and erect a tree but we can’t give life to it. So, we should think before we chop down the tree. The writer tells us to preserve the environment and nature. We should protect the trees. Green trees keep the environment green, clean and healthy.