In message , at 11:40:13 on Tue, 11 Oct
2011, d remarked:
Who knows, thought its not written in stone that supply always has to
fulfil demand. Sometimes someone has to step in and say enough is enough
no matter what vested interests it ****es off.

There are only a certain number of aircraft in the world, and they are
built at a very finite pace. That, and the obsolescence of old aircraft,
is a natural limiter, irrespective of the number of runways.

True , but given the lifespan of an average commercial airliner I suspect
they can be built a lot quicker than they're obsoleted these days.

Air travel is growing 4% a year, but counteracted by a 2% overall
increase in fuel efficiency.

Anyway , have a look at http://www.flightradar24.com to see the shear
numbers of aircraft in the sky already over europe. Personally I think its
quite enough given the precarious state of the enviroment at the moment.

Today it's still a drop in the ocean, with most carbon footprint coming
from industry, space heating and motor vehicles.
--
Roland Perry