Oh I have looked into it and so have most of the worlds major scientific institutions and they say you're wrong.
Even President Bush's advisors now say Global Warming is more than 90% likely to be man made.
You think that a couple of degrees is not significant?
That rather depends on what you consider significan't - if you're afraid of "Day after Tomorrow" type things then you're OK - that's just a film.
What you will definately get is large scale changes in climate - regions that were food producing become desert, mass migration on a truely epic scale as some countries suddenly cannot support their populations.
What we might get is worse. There are massive stores of methae trapped in the siberian permafrost. A few degrees change would thaw out huge areas of this land and release this - which could accelerate things further.
We're not talking about the end of the planet but we are talking about massive population and financial instabilities through out the world.
A couple of slightly warmer summers it aint!
The Royal Society is the oldest and one of the most respected scientic institution in the world.
This is their guide to the myths around global warming.
http://royalsociety.org/downloaddoc.asp?id=163 0
I strongly recommend it to you, they do know what they're talking about