I think this link hit HN in part due to the new Simon Clark video on contrails which mentioned it. Simon discusses the claim that contrails can be avoided for a small fuel penalty, reducing the overall effect on climate change a given flight would have. Apparently some airlines are already exploring this and Google includes contrail impact estimates on their flight search. So maybe it is worth talking about.
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I think this link hit HN in part due to the new Simon Clark video on contrails which mentioned it. Simon discusses the claim that contrails can be avoided for a small fuel penalty, reducing the overall effect on climate change a given flight would have. Apparently some airlines are already exploring this and Google includes contrail impact estimates on their flight search. So maybe it is worth talking about.
https://youtu.be/QoOVqQ5sa08