The present situation of global warming and measures.
・Knowing the present situation and influence of global warming.
・Knowing the validity of measures.
In recent years, the global warming became a problem that it cannot ignore in all over the world. The global warming became a problem for a long time. However, this problem does not improve at all. If the global warming advanced as the present condition, we or our next generation would be troubled by serious damage. Therefore, we must suppress the advance of the global warming. To that end, we must know about the global warming. Our group watch the global warming from four views. They are mechanism, relationship of cars, possible influence and validity of measures.