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Originally Posted by will76
Off the top of my head. I guess the part where they show that the CO2 levels in the atmosphere just in the last 20 years or so have gone up to levels several times higher then at any point in history???
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Again, Will - in "history"??!! How can someone even claim to know this? What exactly were the CO2 levels on earth 2 million years ago? 1 million? Even 200,000 years ago?
It's limited data. Period. You can't deny that. I'll again refer to the fact that we don't even know what killed the dinosaurs - huge things - bigger than humans. Many different varieties. All gone. How? Why? Perhaps the CO2 levels were a LOT worse then? We don't know because we have VERY limited data on the earth's history.
