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This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-06-07 and was most recently seen on 2026-06-07.
The Younger Dryas impact hypothesis (YDIH) is a widely refuted fringe hypothesis for the cause of the sudden influx of freshwater into the ocean which disrupted the thermohaline circulation and resulted in the onset of the Younger Dryas cool period (stadial) at the end of the Last Glacial Period, around 12,900 years ago. It has been debunked for lack of evidence for any such impact by many scientific studies by relevant experts across geology, astronomy, and other related disciplines for decades as self-contradictory, inconsistent, omitting contradictory information, and "sometimes defying the laws of physics." The academic conversation around YDIH is considered unusual due to the insistence of its primary proponents that rejection is a vocal minority and claims of a conspiratorial cover-up by mainstream science.
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