Global Warming

I think Global Warming is real due to facts provided in the following websites:

http://www.conserve-energy-future.com/GlobalWarmingEffects.php

http://www.conserve-energy-future.com/GlobalWarmingCauses.php
http://www.conserve-energy-future.com/StopGlobalWarming.php
http://www.conserve-energy-future.com/HowGlobalWarmingWorks.php