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Guys, guys. The idea is flawed but can be corrected, it all depends on waht's used for fertilization: for example, using all of those above a billion of net worth would surely get results.
Anything but stoping the use of oil.
Yea just stop using oil, watch the entire global economy crash and you can't actually get food and die of starvation.
So you want more acidification of the oceans?
Raising the calcium carbonate compensation depth? Killing all the invertebrate?
You know what happens when algae grow too much? https://en.wikipedia.org/wiki/Dead_zone_(ecology)
I mean that's the idea though. Grow it, let it die, become sediment. This isn't like a fun thing to do randomly. It's because the alternative is everything dies.
That's one of the weak points of the idea. Things just don't drop to the bottom of the ocean, there are layers that separate the waters. So to sequester the carbon as permanently as possible takes energy to get through all of that. The other issue is feeding this growth. It won't grow without an input of fertilizer, and that requires more infrastructure and energy use, plus depletes those resources elsewhere. There is no solution to this. Even the real direction that we should take, reduction of emissions, has costs that are bad for lots of people.
This isn't a suggestion of inaction, just a note of realism, since the post is framed in the tone of "here's something no one knows about" that will solve things.
That's why when you do it you don't do it too much.
It sounds dangerous as heck:
I used to dread the concept of intentional climate modification as too much chance of something going wrong and leaving us even worse off (see the moisture changes in China after planting all those trees).
But yeah, it’s time. We’ve screwed up badly enough that we almost certainly need to do something. Let’s get going on some small to medium trials and suss that out
This sounds like the attitude that we took with AI. "We don't know yet what it'll do, so let's find out!"
The fact that you posted this out of concern means we know enough to avoid having that happen if we're responsible about how we go about fertilizing certain areas of the ocean.
this post was submitted on 28 Apr 2026
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