• Pennomi@lemmy.world
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    3 months ago

    Ehhh needs more study. Aluminum oxides in the atmosphere actually provide a cooling effect. That being said, we don’t know much about the health implications yet.

    • Fuckfuckmyfuckingass@lemmy.world
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      3 months ago

      If you read the article the hazard is the Aluminum Oxide could deplete the Ozone layer. So a disruption to a different ecological process rather than the Greenhouse effect.

    • Peppycito@sh.itjust.works
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      3 months ago

      Right on. The “cooling effect” will hopefully offset all the kerosene and methane they’re injecting into the upper atmosphere and oceans.

      • Pennomi@lemmy.world
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        3 months ago

        They’re injecting water vapor and carbon dioxide, as well as soot (not kerosene or methane). I don’t mean to imply that it’s not an issue, but that more study is warranted (the article says the same thing).

        • Peppycito@sh.itjust.works
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          3 months ago

          Do you know what those clouds are that come out of the engine at cut off and start up are? Not water vapour or carbon dioxide.

          • Pennomi@lemmy.world
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            3 months ago

            If we’re talking Falcon 9, the ignition is using TEA-TEB, a fairly nasty hypergolic. It burns to water vapor and carbon dioxide, plus some boron oxides.

            Starship doesn’t use a chemical igniter, so yes, there’s probably a small amount of methane that escapes during ignition. Generally though the combustion for Starship is incredibly clean, with something like a 99.5% efficiency.

            • Peppycito@sh.itjust.works
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              3 months ago

              Theres nothing to ignite unless the pumps are running full speed. The pumps keep running after after the fire goes out. What are those pumps pumping?

      • halcyoncmdr@lemmy.world
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        3 months ago

        Oh boy, you’d better not look at the cattle industry then.

        Every rocket launch ever done in history doesn’t make even a blip on the graph for human-related carbon emissions.

        • Peppycito@sh.itjust.works
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          3 months ago

          I love that “drop in the bucket” justification. In the 1900’s car exhaust was a huge innovation because it did away with the mountains of horse shit produced by carriages.