Quote:
Originally Posted by malloyd
Leaving aside that we are ourselves currently in the middle of an Ice Age (it's a warmish interval at the moment), for most people the term conjures an image of vast ice sheets, and less than a century just isn't long enough for those to develop. Sea level data for previous recent periods of glaciation seem to show something like a meter drop per century, which probably isn't enough water for miles thick ice sheets anywhere yet. Dozens of meters in places maybe.
On the other hand, a century at +7 C is probably ample to melt all the existing ice, which has put those equivalent points in London under 100 meters of water on Aftershock-2.
Of course a process able to generate a global drought is probably physical nonsense, so it may not care very much about realistic water cycles on the other linked timelines either.
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I assume vast snowfields. In some areas, the snow has piled deep enough to crush the snow back into water. However, the process of the snow forming into ice takes more time and pressure.