Potential to reduce the climate impact of aviation by flight level changes

  title={Potential to reduce the climate impact of aviation by flight level changes},
  author={Ulrich Schumann and Kaspar Graf and Hermann Mannstein},
Aircraft contribute to global and regional climate changes by contrail formation and by emissions of carbon dioxide and others species. Among these, contrails are considered to have the largest warming contribution on short time scales (up to order of decades) while carbon dioxide may cause the largest warming effect globally at long time scales (order of a century). Contrails warm generally during night. During day contrails may cause a cooling. This paper discusses various strategies to… 

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