This, for sure. I gave up flying 7 years ago, and all that has achieved for climate change is a miniscule reduction of fuel used - perhaps 8 hours per year tran

This, for sure. I gave up flying 7 years ago, and all that has achieved for climate change is a miniscule reduction of fuel used - perhaps 8 hours per year transporting 100kg (self + luggage). Perhaps the important impact personally is that I won't feel guilty as things get inevitably worse. At a stretch, maybe one or two people I have interacted with realised that they too could cut down or quit flying. But I don't preach, so it only ever comes up when relevant (someone starts a conversation about holidays abroad, or the company wants me to go to some pointless conference). I don't think I could name one person who I've influenced to quit flying.