• 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.