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Is Space Traffic Creating More Clouds?

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  • There are how many space launches per year worldwide ?
    Many rockets use liquid hydrogen + liquid oxygen, those fuels generate only water vapours. No CO2, no sulfur, or real pollutants. Actually, liquid hydrogen is mostly produced from natural gas, so some CO2 is release, but far less than gasoline, Jet fuel or COAL.
    Most rockets use RP1 + liquid oxygen. RP1 is similar to Jet Fuel, same pollution characteristics.
    And airplanes use more than one thousand times the qty of Jet Fuel that rockets use RP1.
    There are s

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