In reply to tony:
> This is fair. If things aren't sorted by then, it will take more than forests to put anything right.
Of course, as I said, offsetting the problem is not a bad thing. But, by the end of those 100yrs we'll still have to/ had to deal with the carbon produced by their 'carbon neutral flight'.
They're probabally right to call it carbon neutral; the more people who sign up to it the better (and, I'm sure, fewer people would sign up to 'carbon offset travel'), but I still think it allows people to feel less guilty about air travel than they should.
Mark