ScienceDaily: 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. ‘It’s important that we get to the bottom of when the great ice sheets covered Sweden and how warm it might have been when there was no ice. At present there …