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According to a new doctoral dissertation at Stockholm University in Sweden, based on analyses of deposits of pollen grains, it is possible that all of Sweden was virtually free of ice for long periods during the latest ice age. The findings show that the glaciation might have started some 20,000 later than was previously assumed.
Martina Hättestrand’s hypothesis, on the other hand, is that Sweden may have largely been ice-free between 59,000 and 40,000 years ago.
Just as important, one might wonder, just how much does our esteemed scientific community actually 'know' and how much is their own 'learned' conjecture.
I suspect that, generally speaking, a lot of what we have been told about prehistory needs to be scrutinized more closely.
Actually it has been long recognized that the size and extent of
ice sheets were neither constant nor permanent during any glacial
period, including the Weichselian, which is defined in Europe as
extending from 114,000 to 11,700 BP. In Scandinavia, the problem
is in determining the actual timing and extent of the growth and
shrinkage of the Scandinavian Ice Sheet because the last glacial
advance during the Last Glacial Maximum (Late Weichselian) either
eroded or buried the sediments deposited during older periods of
glacial advances and retreats. As a result, much of the Weichselian
history remains poorly constrained and the subject of various
interpretations and speculation. This is summarized in: