• Cleverdawny@lemm.ee
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      1 year ago

      Yep. Best estimate I have seen is 4.5 billion tons of uranium. Course, most of the natural radioactivity of our ocean is from potassium, actually. But either way, natural levels of radioactivity will not change.

    • Slice@lemmy.world
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      1 year ago

      4 billion tons at 3 ppb… It’s so much water, don’t try to drink it either.

      • Gormadt@lemmy.blahaj.zone
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        1 year ago

        For anyone curious:

        From Wikipedia:

        The total mass of Earth’s hydrosphere is about 1.4 × 10^18 tonnes, which is about 0.023% of Earth’s total mass.