Today, China's economy has made the great achievement. More and more foreign people come to China to seek for cooperation. It is true that people's life standard has been improved a lot during the last decades, but the environment has been polluted badly. When I was very small, I could see the green trees and clean water around my hometown, but now, the river becomes smaller and the rubbish can be seen everywhere. I feel so sad about it. We have sacrificed so much to chase the profit. If we can't save the environment, we won't live the comfortable life. For us, we should not throw away the rubbish and plant more trees. The little things we do will make a great difference.