This is quite a pathetic attitude actually. i'm not sure theres any hope lol
I'm not saying cars don't produce more co2 than airplanes, they undoubtedly do, as does other things like producing electricity in power stations. These things, of course do not carry the same weight in terms of necessity.
The point is, which I'm sure you understand really, is that air travel for holiday destinations, (which lets face it is why the general population use aircraft in the uk) is a CONSIDERABLE producer of excess co2 emissions, which is totally unnecessary for peoples actual survival. It is a luxury usage; vanity, which could easily be banned with no real loss of comfort to anybody. I don't actually agree with banning things, but people (even, bizarrely, nature lovers like you!?), left to their own devices won't even do a minor thing like not taking a foreign holiday, even when the writings on the wall.
On the car topic, at least half of car journeys are people 'nipping into town for a few things' i.e., 5 miles or less, which considering a car engine is not efficient when cold , when the mpg is much less than normal temperature, would be best done by bicycle.
If we could do these simple things we could save considerable co2 from going into the atmosphere with no loss of standard of living and greater fitness for everyone, nicer, safer roads for cyclists, and a quiet sky. The savings would also mean we wouldn't need stupid, ugly wind-farms everywhere!
How can anyone argue against that?