In reply to Dan J M:
So, taking away the issue of climate change, have you got any useful contributions to make?
Apologies to the OP, because I didn't really answer his questions.
I try to reduce my overall impact on the environment, by trying to reduce my use of resources. So, for all my male love of shiny things and new toys, I try to resist the temptation to buy new stuff. I have enough rucksacks and shoes and clothing and gear - I don't need anything new, regardless of how nice new things hanging up in the shops.
With all that in mind, the issue of paying a bit more for eco-gear doesn't raise its head very often. When it does, I am happy to pay more, within reason.
I also find it increasingly difficult to justify driving miles and miles and miles for an hour or so of personal gratification - I'm not so keen that a 200-mile round trip to a hill or a crag can be justified, so I don't do it. I have done it in the past, but shifting priorities have changed the way I think about these things.