Having heard Mr Cameron talking about LHR previously, he doesn't understand aviation economics.
The main problems with politicians - they think they know it all, they don't.
Talk to aviation economists, it is their bread and butter, they know what they are talking about. If they say, yes, Heathrow 3rd runway is a bad idea or vice versa, take it thoroughly into account when making a decision.
For LHR not to be able to expand and for airline's to be charged per aircraft, I hope those wind farms are going to provide a hell of a lot of income through exporting the energy because they are going to need it when British aviation comes to it's knees. Oh wait, that energy is for us...
I take the words of Gordon Brown and apply them to this industry:
"Thank you, and goodbye."