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Asteroid dust triggered a 15-year winter that killed the dinosaurs, researchers find

Scientists have long believed that sulfur from the impact, or perhaps soot generated from global wildfires triggered by the hit, lingered in the air for years. The resulting dark winter "totally shut down photosynthesis" in plants and lowered global temperatures by as much as 15 degrees Celsius.

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https://www.techspot.com/news/100695-asteroid-dust-triggered-15-year-winter-killed-dinosaurs.html?utm_source=dlvr.it&utm_medium=blogger

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