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Any combustion process that burns hydrogen rich fuel at high altitude, serves to deplete ozone. This includes the Concorde, SR-71, and any aircraft that spends much time above 8 - 10 km in altitude. Any combustion process that consumes oxygen at high altitude, serves to deplete ozone. This includes the Concorde, SR-71, and any aircraft that spends much time above 8 - 10 km in altitude.

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16y ago

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