this post was submitted on 21 Mar 2025
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From the grounds of a gas-fired power plant on the eastern shores of Canada, a little-known company is pumping a slurry of minerals into the ocean in the name of stopping climate change.

Whether it’s pollution or a silver bullet that will save the planet may depend on whom you ask.

From shore, a pipe releases a mixture of water and magnesium oxide — a powdery white mineral used in everything from construction to heartburn pills that Planetary Technologies, based in Nova Scotia, is betting will absorb more planet-warming gases into the sea.

“Restore the climate. Heal the ocean,” reads the motto stamped on a shipping container nearby.

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[–] Chocrates@lemmy.world 4 points 19 hours ago (1 children)

There have been tests of dumping iron as well, I forget exactly why, I think it helps algae bloom.

The problem is we can't test this safely and if it has negative effects we may not see it for decades.

[–] Zahille7@lemmy.world 4 points 17 hours ago (1 children)

Right, because the ocean is huge and diverse. Iron may help algae bloom, but it could be actual poison for other aquatic life.

[–] Chocrates@lemmy.world 4 points 16 hours ago

The wiki page is actually pretty promising. Doesn't look like it is the magic bullet but looks actually decently tested.

https://en.m.wikipedia.org/wiki/Ocean_fertilization