How Cold Can Earth Get?

The video explores the coldest temperatures recorded on Earth, particularly in East Antarctica, where temperatures can drop below -90 degrees Celsius. It explains the conditions necessary for such extreme cold, including clear skies, still air, and low humidity. The role of water vapor and infrared radiation in heat retention is discussed, as well as the impact of carbon dioxide in trapping heat. The video concludes that -98 degrees Celsius is likely the coldest temperature possible on Earth due to atmospheric conditions.

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