English Audio Request

Do you believe that Global Warming is man made or not, would be interested in seeing what people think and the reasons behind it.

Why I don't believe that Global Warming is Man Made.
Since Al_Gore's Inconvenient Truth I became fascinated by one statement he made, "tipping point of global warming".

I always wondered how it were possible for man to use resources on the Earth to put the Earth in an irreparable state.
From inception it seemed like nonsense to me, but since I wasn't a geologist or climatologist
I decided to dig up all the info I could on Earth's climate through the various eras.

Now the Earth is 4.5 billion years old and man has only been around about 200 000 years or so if you look at existing fossil records.

Of those 200 000 years the only period that man could impact the CO2 output significantly would be during the last 200 years or so due to industrialization.

Now looking at that alone you can see that man's existence has been insignificant on the time scale of the Earth.

So how could man bring the Earth to a "tipping point" in 200 years?