Carbon Dioxide Removal (CDR)

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CDR is removal of CO2 from the atmosphere - an essential basket of technologies for achieving UN IPCC best outcomes to mitigate climate change. This is a community for discussing advances and issues of CDR.

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Whales could be a valuable carbon sink, say scientists (www.sciencedaily.com)

submitted 2 years ago by poVoq to c/cdr

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[–] MrMakabar 2 points 2 years ago (1 children)

That is not the only argument made in the article thou. Whales increase photosynthesis by shitting out nutrients. This binds a lot more carbon.

[–] CadeJohnson 2 points 2 years ago

I did see that, but the article seemed to want it both ways: the nutrients are there to feed the krill, but they are all the way down to the abyss where they'll never decompose before they become sediment carbon (sequestered). It cannot be both I think, and I don't know which is prevalent, so did not try to calculate. But I was in the Navy briefly, and the phrase "lower than whale shit" has never been forgotten . . .

Any process that sinks carbon to below 2000 feet has basically removed it from the atmosphere for at least several centuries. There is a whole area of documentation of carbon disposal arising called MRV (Measurement, Reporting and Verification) - when they start certifying whale shit, we will know that bureaucracy has fully permeated the planet.