Originally shared by Gregor J. Rothfuss

now that’s geoengineering: There is a proposal to use about 9% of the oceans surface for massive kelp farms. The Ocean surface area is about 36 billion hectares. This would offset all CO2 production and provide 0.5 kg of fish and sea vegetables per person per day for 10 billion people as an “incidental” by-product. Nine per cent of the world’s oceans would be equivalent to about four and a half times the area of Australia.

https://www.nextbigfuture.com/2017/07/so-long-global-warming-and-thanks-for-all-of-the-fish.html