So far as we know, the world we live in is becoming more and more intolerable because of environment problems. Nowadays, the earth is facing the crisis of water resource.
Therefore, water shortage is a serious problem in many cities of the world. Many people think that fresh water is inexhaustible. It is a wrong conception. As a matter of fact, the earth is lack of fresh water.
So, in what ways can the human solve the problem? Maybe everyone can take actions. We should try to use less water and make sure we do not pollute the water. It is hoped that the goverment will accelerate relateive policies. These policies must demand factories and industries that they are not allowed to pour waste into lakes and rivers. Let's work together to protect the resource of water.