24 Comments

Wonderful read. Going to make my first ever visit to Gibraltar next month even more interesting. Also, my grandfather always gave me a subscription to Nat Geo, which I loved. Finally, my home state of Washington got not one but two mentions! The Missoula Flood and the earthquake everyone fears.

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Apr 5, 2022Liked by Mike Sowden

Great read. Really enjoyed it. But one observation: When you talk about the water per second at Niagara Falls, you say that 2,400 cubic metres of water has a weight of 3,100 tons... but that can't be right. Depending on the salinity etc., 2,400 cubic metres of water has a mass very close to 2,400 tons.

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Glad I joined your Substack, Mike. Fascinating stuff.

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founding

Legitimately, this is one of the most fascinating things I've read in a long time! And that includes the papers about the mega-flood that created the English Channel ("the original Brexit," my mother-in-law called it, not happily). Absolutely loved reading this, despite, seeing my backyard rockstar the Flood of Lake Missoula upstaged ;) So much to think about.

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Amazing read, Mike!

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What a great read!

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Fantastic!

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Great read!

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