• HarryLime [any]
    ·
    8 months ago

    Is it time to try ocean iron fertilization?

    • ClimateChangeAnxiety [he/him, they/them]
      ·
      8 months ago

      I have mixed opinions on a lot of “geoengineering” solutions but I feel like that one is just gonna be necessary. Even if we stopped burning fossil fuels today ocean iron fertilization will probably need to happen.

    • carpoftruth [any, any]M
      ·
      8 months ago

      This only works in areas that are iron deficient but that have abundant levels of other important nutrients. These conditions exist but not everywhere. In any case, dumping iron would create a short bloom of algae but oceans are enormous so probably not enough to meaningfully increase overall phytoplankton levels.

      I found some interesting material about Fe fertilization as a carbon sequestration technique when I read about this a while ago and that also seems cool but is a lot less practical than it sounds because of very limited places on earth where it could physically sequester carbon, and also because fish and ocean critters are smarter than you think and eat marine snow, preventing carbon from being actually sequestered.

      • Red_Sunshine_Over_Florida [he/him]
        ·
        8 months ago

        Could they ever try sequestering carbon via algae farming on a large scale? Even then, where might the carbon be stored so it does not reenter the atmosphere?

        • BodyBySisyphus [he/him]
          hexagon
          ·
          8 months ago

          There's been conversations about doing it in the desert to take advantage of the abundant sunshine, but scaling is a challenge.

        • carpoftruth [any, any]M
          ·
          8 months ago

          That's probably a thing people are talking about if not actually doing. Maybe dried algae could be buried.

        • Maulwurst
          ·
          8 months ago

          https://www.brilliantplanet.com/

          This company claims they can do just that. The problem is it’s basically a money dump. It doesn’t produce anything of value

            • Maulwurst
              ·
              8 months ago

              I guess another problem is that investors might wait for other options that can prove to be more profitable.

            • Maulwurst
              ·
              8 months ago

              I mean let’s see if it ever scales