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Thank god global warming flooded it 7000 years ago.

During deglaciation since the Last Glacial Maximum, between about 20,000 to 7,000 years ago (20–7 ka), the sea level rose by a total of about 100 m, at times at extremely high rates, due to the rapid melting of the British-Irish Sea, Fennoscandian, Laurentide, Barents-Kara, Patagonian, Innuitian and parts of the Antarctic ice sheets.

[https://en.wikipedia.org/wiki/Early_Holocene_sea_level_rise]

Setting the sea surface to -100m on https://www.floodmap.net/ shows a very different world: walking dry-shod from Ireland to Helsinki.

Very cool website. I had no idea so much of the ocean was so deep. I’d like to see a chart of sea level vs sea area.

There's an xkcd what if that made me realize how deep/shallow the oceans are in various places. https://what-if.xkcd.com/53/

Bonus - what happens to Mars if you dump all the water there: https://what-if.xkcd.com/54/

I think it'll be okay! ;)

Not seeing huge demand for ochre or limestone these days...