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July 26, 2019 - Scientific American

Current Warming Is Unparalleled in the Past 2,000 Years

Current Warming Is Unparalleled in the Past 2,000 Years
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A groundbreaking study led by Raphael Neukom of the University of Bern investigated the scope of natural warming and cooling events experienced by the planet since the start of the Common Era two millennia ago.

Now, scientists have discovered that it’s not just the temperatures themselves that are so unusual. That they’re rising all over the world is also unique in at least the past 2,000 years. The paper would seem to suggest that the cause, instead, must be related to another forcing—namely, the human emissions of greenhouse gases into the atmosphere.

Read more at Scientific American


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