I stopped flying in 2005, by which time I had read enough to convince myself that flights gave out a huge part of the emissions — and that my other efforts to reduce my footprint were tiny in comparison with the impact of this.
As a musician and therapist, I make a living and gain great satisfaction from listening — so the noise pollution which is almost ubiquitous in the UK is something I find annoying and, not to sound too dramatic, represents the rape of the natural world which aeroplanes glorify in!