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Fimbulwinter is the harsh winter that precedes the end of the world and puts an end to all life on Earth. Fimbulwinter is three successive winters, when snow comes in from all directions, without any intervening summer. Innumerable wars follow. The event is described primarily in the Poetic Edda.
An impact winter is a hypothesized period of prolonged cold weather due to the impact of a large asteroid or comet on the Earth's surface. If an asteroid were to strike land or a shallow body of water, it would eject an enormous amount of dust, ash, and other material into the atmosphere , blocking the radiation from the Sun .
Winter is the coldest and darkest season of ... winter begins on 14 October and ends on the last day of February. ... and several smaller eruptions around the world ...
Astronomical winter begins on the winter solstice, which is the shortest day of the year when the North Pole is tilted away from the sun. This year that's Saturday, Dec. 21, which will be 5:21 a.m ...
Winter solstice, the shortest day of the year and the official first day of winter, is on Saturday, December 21, this year (well, for the vast bulk of the world’s population anyway).
A Path Where No Man Thought: Nuclear Winter and the End of the Arms Race: A book authored by Richard P. Turco and Carl Sagan, published in 1990; it explains the nuclear winter hypothesis and, with that, advocates nuclear disarmament. [239] Nuclear Winter is a mini documentary by Retro Report that looks at nuclear winter fears in today's world.
When does winter start? In 2023, the winter solstice date is Thursday, December 21. So, what is the winter solstice, and why does it happen?
The result is winter temperatures that are lower than anywhere else in the Arctic, with average January temperatures of −45 to −30 °C (−49 to −22 °F), depending on location and on which data set is viewed. Minimum temperatures in winter over the higher parts of the ice sheet can drop below −60 °C (−76 °F)(CIA, 1978).