Global warming is defined as an increase in the average temperature of the earth's atmosphere (especially a sustained increase that causes climatic changes). Many people believe that human contribute to a main cause of global warming, but many people say that the increase is part of the natural climatic change of earth. Debatable cause and solutions of this theory of global warming include the natural climatic change, the cause of human, and the solutions we can take to halt global warming. As humans, we all have our own opinion, but the problem of global warming should no be debated; it should be solved.