Between 15,000 and 11,000 years ago the Earth and its inhabitants experienced a series of climatic fluctuations. During the ice age, it had been extremely cold, with continental glaciers extending much further than they do today, but the climate began to warm. Temperatures then suddenly reverted back and there was a short cold spell as temperatures plunged, an event known today as the Younger Dryas, before yet more warming, which marked the official end of the last ice age. But were the global changes to the Earth's climate caused by comet impacts or were they from huge solar flares and a solar shutdown? Watch the video and make up your mind. Images are taken from Google Images for educational purposes only.
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