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user-inactivated  ·  2173 days ago  ·  link  ·    ·  parent  ·  post: Global shipping in 'historic' climate deal

Interestingly, the jets that are coming down the pike fly higher and faster, and will produce vapour trails and contrails in the Stratosphere. After 9/11 they got a chance to do some data gathering and noticed that daytime temps are lower in areas with contrails, but it also does not cool down as much at night. So, if we run a bunch of aircraft to make clouds to reflect sunlight, what exactly will that do?

One of the potential solutions talked about a while back was to change global airline flight paths to go over the North Pole area to increase upper level clouds and block sunlight from melting the polar caps. But if those same clouds trap heat, could it also be a negative.

The problem of aviation is that the margins are tiny and any increase of operating expenses will cause a massive lobbying push for handouts.