For most of Earth’s history, there have been no ice caps at all...
For most of Earths history, there have been no ice caps at all...
That is a valid point.
For most of Earths history, there have been no ice caps at all...
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So? It only takes one Ice Cap to ruin an otherwise perfect day ... The point is that we are LEAVING an historically warm period and moving into a cold period.
Hope you have several thousand years of heating supplies handy!