What are the alternatives? Sealing Undersea caves? | Hacker News

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		Pica_soO on March 7, 2017 \| parent \| context \| favorite \| on: German institute successfully tests underwater ene... What are the alternatives? Sealing Undersea caves?

Beltiras on March 7, 2017 [–]

No, there are plenty alternatives storing energy. I'm just wondering about the comparative environmental costs.

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