I don't know why people seem to enjoy Harry (and even more Meghan) bashing ... no wonder he doesn't look happy over here when he's surrounded by a sea of sour grapes.
But that's by the by. Quite frankly, like Harry, I will continue to take commercial flights (as he did, no private jet for him) to visit all the places I never had a chance to see before because I was working too hard. Over population is the principal cause of climate change/global warming, not air travel, and I don't have any children so the buck stops with me. Also I don't drive (I walk or use public transport), I don't eat red meat and I read ingredients to make sure things I buy at the supermarket don't contain palm oil (fresh produce is best and that's what I try to use, even growing veg/fruit as much as possible so no carbon footprint). I'm doing my bit as much as I can so I'll continue to fly and I won't be feeling guilty about it. Therefore I'll not be donning any tin helmet and hiding behind the sofa, though I'll be glad to ferry wine and chocolate to those who are!