Volcanic gases can carry heavy metals across oceans to trigger global cooling
Deep within Greenland's ice, a mysterious platinum spike reveals how Icelandic volcanic gases traveled across oceans to trigger a massive 15 degree Celsius temperature drop that lasted over a decade.
A dramatic climate shift 12,800 years ago was long blamed on a comet, but new analysis of Greenland ice cores tells a different story. Scientists discovered a massive platinum spike that appeared 45 years after the cooling began, matching the chemical signature of Icelandic submarine eruptions rather than outer space debris.
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