We have to protect the environment As the 21st century， we must make the protection of the environment to prevent damage to human Because of the destruction of mankind， so that the Earth's biological， endangered plants facing A tree， the establishment of eco- Yes， this is Protection of the environment is everyone's Greentree said it， he can enjoy， he Therefore， we must protect the ecological environment， let us change the survival of the planet even better! 我们要保护环境作为21世纪的人，我们就要好好保护环境，不让人类再次破坏。因为人类的破坏，使地球的生物、植物面临濒危灭绝。一棵绿树，建立生态家园。对，事实如此。保护环境人人有责。就说绿树吧，他可以乘凉，也可以遮风挡雨所以，我们要保护生态自然环境，让我们赖以生存的地球变的更加好！
