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  • How Contrails Are Aviation’s Biggest Threat to the Environment

    How Contrails Are Aviation’s Biggest Threat to the Environment

    It would be easy to assume that the commercial aviation industry’s fuel consumption was its biggest impact on the environment. For example, a Boeing 737-800 burns about 2,268 kg of fuel an hour in the sky. However, research shows that persistent contrails play a much larger role. An eight-year-long study found that contrails created 57…