the people complaining are the ones who DON't Benifit from LHR but get the noise and pollution
Actually the pollution case is serious as the European Courts have already put the UK Govt on warning about general pollution levels - so it's a major issue
It's not the aircraft so much - it's all the car traffic generated around LHR that causes the problem - and if the numbers in the study are way too optomistic (as they must be given what we know now) then the protesters have a damn solid case on this issue
Again it means the case will be stuck in the courts for years