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Refrigerants and the ozone layer
Jet engines and the ozone layer
Aerodynamics, a subdivision of fluid dynamics, is a concern for any object that moves through an atmosphere.
Aerodynamics is a subset of fluid dynamics that deals with the flow of air about objects, typically aircraft, or their components.
"A train journey - rather than a flight - between London and Glasgow could save 528 kg of carbon dioxide, the equivalent of a year's growth in 176 trees."
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