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U.S. flights are 14% more polluting than global average; efficiency improvements could cut aviation emissions 50%.
A new study finds global aviation emissions could be cut by up to 50% without reducing air travel by improving flight efficiency, such as eliminating premium seating, using newer aircraft, and increasing seat occupancy.
Researchers analyzed 3.5 billion flights and found U.S. flights are 14% more polluting than the global average due to older fleets, congestion, and low load factors.
The study argues that relying solely on sustainable aviation fuel, which currently makes up less than 1% of jet fuel, is insufficient for meeting net-zero goals.
Instead, immediate operational changes like phasing out the most polluting planes and running fuller flights could deliver significant emissions reductions.
Los vuelos de EE.UU. son un 14% más contaminantes que el promedio mundial; las mejoras en la eficiencia podrían reducir las emisiones de la aviación en un 50%.