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Eric Gaba ( Sting - fr:Sting ) · CC BY-SA 3.0
Landmark Americas wonder

Greenland Ice Sheet

3000 BCE – still standing

The second-largest ice body on Earth, covering 80% of Greenland and containing enough ice to raise global sea levels by over 7 metres

Wikipedia

The opening of the article, and a way into the rest of it without leaving the site.

Greenland ice sheet on Wikipedia.

Elsewhere in Americas at the time

Records whose own span overlaps this one, found by the same test the canvas draws with. The bar under each card is where it sits inside this one.

See the whole view
Image credits5 pictures from Wikimedia Commons