I see (BBC TV news this morning) that the UK-based Greenpeace mob who attacked the Russian oil exploration vessel recently, and who have been held in custody in Russia before release, arrived back in Britain today from St Petersburg - by taking Air France to Paris CDG and then Eurostar to London, because "they don't want to use Heathrow because of the 3rd runway proposal."
So it seems it's fine for Greenpeace to spend their (or to be more precise, their donors') money on a more expensive arrangement, use more carbon (one of their other cries I seem to recall), use Paris CDG airport which gobbled up far more land take than Heathrow has ever proposed, and support the French economy (who blew up their Rainbow Warrior ship a while ago), but never support the UK economy, whose public service broadcaster uniquely just reads out Greenpeace press releases as 'fact', nor support the UK aviation industry which carries the national economy along.
What a two-faced lot.