How to protect the environment has become one of the biggest problems in the world.Since the environment is very bad,such as water pollution,air pollution and so on .Why is the environment very bad?First of all,many people cut down more trees.In addition, many people have cars and drive them.Finally,many people can't save water.
As a result,we must protect the environment.First,we can plant many trees and cut less trees.What's more,we must save water.Last but not least,we should take more buses and take less cars.
In a word,we must protect the environment.