Uploaded July 2026 | Updated September 2026, 2 weeks ago

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Tens of thousands of years ago, large portions of North America and Europe were blanketed in ice. Although these glaciers have been gone a long time, they continue to shape our landscapes in some surprising ways.

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Sources: docs.google.com/document/d/e/2PACX-1vToOU7j6mHcNJ9MpwIVAYJA3LTBmi8KiQD1QgAP9GJjqpnoUA_NITdrNpZdJk9tssV-kT494pM_BuO9/pub