The Great Wall is one of the wonders of the world, but also the pride of China, he is our strong witness, is our great defensive tools, around his beautiful scenery,trees.Now he is one of our tourism, overseas Chinese of unusually large, tourist attractions and so developed, but the people are many, the environment is not good, they do not care for the environment, litter, the surrounding trees are dying, environment becomes worse, so I am here to we advocate: don't litter, protect the tourist attractions, protect environment.