Small cuts in air traffic would level off global heating caused by flying – study

Annual cuts of 2.5% would keep aviation's contribution to global warming at about 0.04C, research suggests

A modest diet in our flying habits would be enough to level off the global heating caused by the aviation industry. That's the surprising conclusion from a study, which also warns that if the aviation industry continues to grow at current rates then it will be responsible for around nearly 0.1C of heating by 2050.

Taking a flight adds to global heating in two ways. The first is from the direct effect of burning jet fuel and producing carbon dioxide, which remains in the atmosphere. The second is from indirect effects caused by tailpipe emissions in the upper atmosphere, resulting in cirrus clouds that trap additional heat and complex chemical reactions that alter the balance of greenhouse gases such as ozone and methane.