Like most people here I'd like to believe that aviation is blameless and we can all fly as much as we want. It's very tempting to grab that programme as evidence that we are OK, and believe what we want to believe.
But it would be foolish to accept one TV programme that deliberately set out to be controversial, as justification. For every 'expert' saying that we have no effect on the planet, there are 10 'experts' saying that we do. Personally I think the jury is still out.
Sal