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Originally Posted by barrowaj
The difference is that previous trends were gradual and much less severe than the current trend, which correlates with human CO2 production. Specifically, this is the graph I am referring to:
-snip image-
If you talk about the natural environment at a stable feedback system, then you would assume that the pattern of warming and cooling would repeat itself within a set of boundaries. However, it is clear that current CO2 emissions have escaped the previous boundary conditions. So we don't know if the system is stable under these parameters.
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And we don't know if it isn't.
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Sure we can make changes to reduce CO2. We can reduce our output of it, and we can dissolve it in the ocean. There was an article in Scientific American about how we could do this a few months ago. I'll have to go look at the article again.
I know that we could help grow more algae in the oceans, but this might have other significant consequences that we should investigate first.
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Modern nations can't do enough to make a real difference and developing countries certainly aren't going to do anything anyway.
-dale