pliocene

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grist.org

Climate change could take weather patterns back to the Pliocene

It isn’t just about the warming planet. It’s about wind, too.
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www.stuff.co.nz

Climate explained: What the world was like the last time carbon dioxide levels were at 400ppm

The last time global carbon dioxide levels were consistently at or above 400 parts per million (ppm) was around four million years ago during a geological period known as the Pliocene Era (between 5.3 million and 2.6 million years ago). The world was about 3 degrees Celsius warmer and sea levels were higher than today.

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