& we are still in the accelerating part of the speed-of-change curve, ie the climbing side of the bell-curve of the speed-of-change graph..
We may be forced into residing only at the poles, by the end of the century..
( yes, in the past, there have been times which were too-hot-for-inhabited-land in the tropics, the only difference is we're doing it about 100x as quickly as Nature usually does these things )
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