TIL it was theorized through the 19th century that the Arctic Ocean got warmer as it got closer to the North Pole. The “Open Polar Sea” could provide trade routes through an equator-like temperate climate to Asia, Europe, and the Americas. It was disproven by dozens of failed expeditions.

Read more: https://gizmodo.com/the-open-polar-sea-a-balmy-aquatic-eden-at-the-north-p-5902410

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