The scene on the TV that one by one hurted people are rescued by people's liberation army shocked our heart. The reported news of increasing num of dead or injured people cause the concerning and attention to the earthquake inYushu.More and more people do their best to help the people of disaster area.They donate money and articles of every day use .We know that the frequent disasters these years all over the world have deprived so many life.Are they just natural phenomena ? Do the disasters have nothing to do with people?Can we take measures to stop these disasters?These questions are complicated,but we must try our best to find the answers and take corresponding steps,then we may save life.In my opinion,these disasters are more or less concerning to people's behavior of destory environment as we know that climate is closely related to environment.So in order to save more people,the key step is to chang the developing model which is good to ecology .These need our all society to take action.