Wow! ok science lesson 101. Every scientist knows the sun warms the earth. The problem is when too much carbon is in the atmosphere the earth warms more. The sun also cycles with how much heat it throws at us. The reason for the confusion is it should not be called global warming although that is what is happening. It is an imbalance in the carbon cycle. The earth can process so much carbon. It is stored in trees and soil. It is even stored in fossil fuels. When too much is let out at one time the atmosphere is thickened. This causes a warming effect on the earth. The earth has gone through periods of hot and cold. We actually are in a cooler time historically. That is why the earth is able to hold all these two-legged locusts. If it gets much warmer crops will wilt and billions will starve. Look what that big yellow (white) ball does to plants when it is 90 degrees out. If that was more of the norm it should be easy to see how crops will die. No crops, no cow, not many homo-sapiens (humans). Yes, the earth will get warmer, we are just speeding it up by an exponential rate. Get you a book educate yourself on the carbon cycle and you can intelligently decide if 'global warming" is something we should be worried about. The choice is 100 years more of billions of humans or 1000.