With regards to pollution etc, I saw an article on the Guardian website which explained that one passenger on a jet to New York would use the same amount of fuel as one car driver would use in a year in the UK!!!!
(unfortunately I can't find this article but I will look tomorrow..its late here now!!)
The point they made in the article, which made me laugh, was that people go on evironmental holidays to far off places where the actual flight negates any good you do while you are there
PS Ren41 - Hiya, been to Logan recently?? (he'll know what I mean!)