this post was submitted on 19 Sep 2026
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49
Startup Claims Ocean Uranium Could Power Earth for 50,000 Years (www.gadgetreview.com)
submitted 2 days ago by FlashMobOfOne@lemmy.world to c/technology@lemmy.world
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Four billion metric tons of uranium sit dissolved in the world’s oceans right now, roughly 1,000 times the total identified in hard-rock mines worldwide. A US startup called Fluxnium just emerged from stealth with a plan to get at it, backed by $7 million in seed funding and chemistry licensed from the US Department of Energy.

The catch: extracting that uranium currently costs more than twice the market rate, and no one has proven it works at commercial scale.

The timing matters. Yellowcake prices have risen approximately 75% over the past five years, according to US Energy Information Administration data. US policy discussions target tripling nuclear capacity by 2050, yet the country imports the overwhelming majority of its uranium from a short list of geopolitically exposed nations.

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[–] partial_accumen@lemmy.world 3 points 1 day ago

That’s still worse than abandoning flying by and large.

edit: I don’t intend to let “perfect be the enemy of good”. It’s more like we got used to a lot of things and sometimes don’t question them radically enough.

Do you think humanity, as a whole, is going to abandon flying? I certainly don't. So the best solution is to make changes to limit the behaviors and modify the behaviors to cause less harm. Again, this is just one component of a larger solution, but its a good one to address what air travel still needs to occur.

A bit of greenwashing here and there just isn’t good enough, if we want to save what’s left of the climate we knew.

We're already beyond that. We're not getting that back.