You can’t just say we need to stop flying: no one will do that, but it’s also not the only choice. If this is a practical way to reduce carbon from aviation, let’s do it. I don’t see anything else likely nor do I see giving up flying.

We need to cut carbon emissions across the board quite seriously, but some industries/technologies will work better than others. Maybe this is all we can do for aviation, but it does help. We’ll just need to make it up elsewhere