Reuters: Palms flourished in the Arctic during a brief sweltering period about 50 million years ago, according to a study on Sunday that hints at big gaps in scientific understanding of modern climate change. The Arctic “would have looked very similar to the vegetation we now see in Florida,” said Appy Sluijs of Utrecht University in the Netherlands who led an international study. Evidence of palms has never been found so far north before. The scientists, sampling sediments on a ridge …