Quote:
Originally Posted by engineerdude
The charts of ice core samples only show Co2 follows changes in climate - not that changes in Co2 cause climate change. To me, all the report did was state the obvious - that the planet is getting warmer. Where I sit in Toledo Ohio used to be under an ice sheet a mile thick - no ice now.
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I don't buy your arguments. If you are so scientifically inclined, would you not also have to point out that, of course, there have been several periods of warming *and* cooling where you live? Evidence at certain points in time would "prove" that the planet is getting cooler. Which it occasionally is.
The executive summary of the 2001 IPCC report explains how carbon dioxide levels are higher than in at least 420,000 years, possibly 20 million years. More interestingly, the *rate of increase* has not been higher in at least 20,000 years.
Climate Change 2001: The Scientific Basis
Atmospheric carbon dioxide levels will appear to follow trends in warming and cooling because these levels do vary over time. It is the overall change over time, ie rate of increase, that is the object of worry.
That carbon dioxide causes global warming is not really an issue for debate any longer. Whether it is due to human factors is.
If you need an experiment I suggest building a greenhouse to see if you can simulate the effect of carbon dioxide in the atmosphere.
