Alexandra Witze, Earth in action

Alexandra Witze, Earth in action

Tree rings’ lack of volcanic signature confuses climate calculations

By Science News, 17:21 PM March 2, 2012

SN Prime March 5, 2012 | Vol. 2, No. 9

Call it the curious incident of the trees in the volcano-time.

Like the dog in the night-time, which Sherlock Holmes realized did not bark during a horse theft, so too are these trees mute on a big happening right under their nose. Their bark doesn’t reveal evidence for the largest volcanic eruption of the last millennium. And that could be bad news for scientists trying to understand how natural factors affect Earth’s climate.

Powerful eruptions...

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