A movie that I consider to be great is the one that makes me think deeply about a topic that the movie has. From this point of view, Gore’s documentary film was really great. It showed me plenty of evidences of global warming which is too severe to threaten human life. I think the ultimate purpose of all human behavior is to succeed in survival and reproduction like all the other organisms. Nature is just means for these final aims and to concern about nature for moral responsibility is to act out of line. However, the problem is, if nature is impaired too much = if nature is too much impaired, human beings will have hard time to achieve these goals. It is ridiculous to try to reproduce and, at the same time, to make harmful the environment = to harm the environment for future generation. It is for our descendant and us that we human have to cure and care for nature as much as possible.