Scientists found near Saint Petersburg the reason of ice age

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In Saint Petersburg and in the south Sweden breeds are found traces of a space dust which is one of the reasons of global ice age, is spoken in article published in the ScienceAdvances magazine. Scientists established that about 466 million years ago between orbits of Mars and Jupiter there was a collision of two asteroids. The dust formed as a result of collision, settled to Earth during 2 million years. Researchers consider that it blocked a sunlight because of what temperature on a planet went down, reports information agency "RIA Novosti" with reference to article...