In-flight measurements reveal that soot emissions influence contrail cloud formation, suggesting new climate implications for aviation.
The contrail clouds formed by jet engines contribute to global warming. In-flight measurements of the particles emitted and contrails produced by a passenger jet show that contrails are formed through different mechanisms, depending on the soot-emission level and the fuel composition, potentially reshaping our understanding of the climate impact of aviation. Low-soot jet aircraft engines form contrail clouds by releasing volatile compounds.
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