Azolla event

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Science and technology

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What Wikipedia says

The Azolla event is a paleoclimatology scenario hypothesized to have occurred in the middle Eocene epoch, around 49 million years ago, when blooms of the carbon-fixing freshwater fern Azolla are thought to have happened in the Arctic Ocean.

Excerpt from the Wikipedia article “Azolla event”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Daniel J. Layton, CC BY-SA 3.0, via Wikimedia Commons.