Global warming is not expected to be a smooth upward curve...
And according to your data we should be still accelerating out of a glacial period, since no one is predicting that we have hit the top of the bell curve in this trend line.
The question is not really whether the Earth would become warmer, as it is expected to be warmer, then growing cooler as it trends down to the next ice age. The question is really at what rate of change? If it has a high delta, adaptation of species generally does not occur fast enough.
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