True enough, humans were around at the end of the last ice age but that isn't my point. Right now the atmosphere has 400 ppm carbon dioxide and that's the most it's had for many millions of years. In any event the end of the ice age came at a much slower pace than climatic change is happening now so the plants and animals had time to adjust and adapt. Change is happening so fast now that time to adjust has been taken away and we need to try and slow things down.
The latest thing I heard is the arctic may be ice free in the summer by about the year 2020. I in all likelihood will live to see that day and that is when scientists expect climate change to experience a big bounce.
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