It is known to all that today the environment has been badly polluted. Though many action have been taken to protect our environment, it still has a long way to go. Two years ago, I went to middle school, and the first moment I saw the environment, I found that trees were very small, and many workers were busy planting trees. Now, when I looked around our school, the trees were taller than people and they grew so fast. People always talk about planting trees but less of them can take action. ...