The existence of global warming and the effectiveness of the Kyoto Treaty are challenged in this controversial study. Contemporary research on changes in the earth's temperature is evaluated, and the contention is made that the evidence scientists use to show the presence of global warming is not strong enough to scientifically prove that manmade global warming exists. The effectiveness of the Kyoto Treaty in countering man-made global warming is also disputed by showing that reducing carbon dioxide emissions and other greenhouse gases fails to affect worldwide environmental change and squanders valuable resources.