this post was submitted on 02 Jun 2025
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Europe

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[–] [email protected] 1 points 3 days ago* (last edited 3 days ago) (1 children)

Europe consists of a bunch of peninsulas surrounded by ocean.

https://en.wikipedia.org/wiki/Baltic_Sea

Water volume: 21,700 km³ (1.76×1010 acre⋅ft)

https://en.wikipedia.org/wiki/Mediterranean_Ocean

Water volume: 3,750,000 km³ (900,000 cu mi)

https://en.wikipedia.org/wiki/Atlantic_Ocean

Water volume: 310,410,900 km³ (74,471,500 cu mi)

EDIT: For bonus points, if one is going to expend the waste heat on evaporating seawater anyway:

https://e360.yale.edu/features/desalination-saltwater-brine-mining

In Seawater, Researchers See an Untapped Bounty of Critical Metals

[–] [email protected] 4 points 3 days ago (1 children)

The temperatures needed to boil water are not the temperatures at which to run datacenters.

[–] [email protected] 2 points 2 days ago (1 children)

You don't need to hit boiling levels to evaporate water.

[–] [email protected] 2 points 2 days ago

Any increase in temperature, which benefits evaporation, decreases the efficiency of running the data center.

This is the vapor pressure curve for water. Under constant pressure and saturation of the air, the evaporation rate as a function of temperature is proportional to the vapor pressure curve. As you can see it is an exponential relationship.

Now you have to offset that with the energy it takes to pump the water around, the increased costs for equipment that can deal with salt water, the increased costs to deal with flooding risks...

You know what you could do instead?

https://en.wikipedia.org/wiki/Salt_evaporation_pond

All it takes is a flat basin and a dam with a gate to let in water and then block it away. The sun will do the rest.