You want overwhelming evidence pointed out step by step? Well I have it right here. It's a long video, but make the time to watch this because it will open your eyes.

He shows many instances in the past where CO2 levels were higher and the climate was very cold. Many more to list. Do yourself a favor and watch this. But please  please  please...watch the video first before commenting. I say this because I want you to decide for yourself after watching it. Then point out any parts you disagree with, and why. Look at the data first hand presented like no other way i've seen. This is good science modeling, not a bunch of hype that isn't supported by facts. These people get grants to continue to spew all this crap.

Thanx.

P.S. Just remember one thing. We've had many ice ages, and some mini ice ages, and there were no cars, planes, factories, and so on. In fact, in one instance, during the revolutionary war, the Delaware river had ice floating, and the people suffered much because of cold weather. This was during a mini-ice age. I'd rather have global warming than an ice age, because people eat during  warming. Cold weather all around is bad news because you can't grow food.

http://www.youtube.com/watch?v=mHjczyA75jU