You forgot to include London/Ashford and London/Oxford in your 'London' list of airports
Only following the CAA stats convention for definition of London airports. But assuming Lydd's runway/terminal extension is given the go-ahead, and Oxford has some capacity to meet London area demand, that only strengthens my point.
FDF:
you need to look at the longterm
Exactly. Which is why a world in which carbon emissions limits have to be met and not just talked about, and where the very demand you talk about drives oil prices up relentlessly, is highly likely to be incompatible with the assumptions of never-ending expansion of air transport which still prevail.
NS