This article doesn't talk about farming the ocean. It's hypothesized that Azolla... | Hacker News

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		bcatanzaro on Oct 5, 2021 \| parent \| context \| favorite \| on: We need to take CO2 out of the sky This article doesn't talk about farming the ocean. It's hypothesized that Azolla water ferns drew atmospheric CO2 from 3500 to 650 ppm over 800000 years: https://en.wikipedia.org/wiki/Azolla_event

prawn on Oct 6, 2021 [–]

Had never heard about that. Great link.

I wonder how salt-tolerant it is? Could it be grown in salt lakes, and the mature ferns be skimmed to compost unproductive soil or feed livestock?

Downside of that is it would reduce the albedo of the lakes.

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