It is not convenietn at all, and so bad that we should not let nature fall into such situation. As my mother always told me to say: " You should be responsible for your behavior ! " Human being's irrational development and utilization of natural resources have led to tragedies. But it is never too late to fix the fences. Human's lives depend on nature. Without nature, human beings could live no more and at the same time nature would be colorless without human beings. Interaciton and interdependence of these two is the foundation to build our beautiful futrure. Therefore, everyone should be responsible for protecting nature.