Comments by "The Esseboy" (@TheEsseboy) on "Real Engineering"
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You do realize A Starship orbital burn lasts 0.01% of the length of a year...meanwhile there are hundreds of millions of cars running 24/7 in total at all times...millions of semis, trucks, busses and thousands of airplanes...tens of thousands of big ships, tens of thousands of big powerplants...
Space flight is a neglible contributor to climate change, only if rockets starts to fly 1000 times more often would it even be a noticable share of emissions.
The materials used for flight however (Metals, ceramics, computers etc.) are another thing entirely, and if you factor in engineers, testing, building, maintenance. Then the total become slightly more meaningful.
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