"No, Boris, noise pollution is NOT pollution just like any other. Noise pollution is purely local, whereas CO2 emission affects the entire planet (if you believe in that sort of thing). "
If we're talking transport noise then all noise pollution is by definition directly linked to CO2 emission.
There's nothing local about the noise from a wide bodied jet leaving Heathrow with 250 passengers on board. Even if you ignore the 127sq km 57 db footprint around the airport, It's still a loud sound source in the sky. You can't get away from it. You'll hear it over much of South East England for something like 10-15 minutes. Try standing in the side streets of e.g. Windsor and telling me it's local and not intrusive.
By contrast a high speed train carrying 250 passengers is unlikely to be heard more than a few hundred feet away (I used to live near one) because the lesser noise is emitted at ground level and rapidly attentuated by trees, buildings and topography.
"Let me put this as simply as I can: if you find aircraft noise disturbing, DON'T BUY A HOUSE NEAR AN AIRPORT. Especially don't buy a house near an airport and then campaign to have the airport closed."
Or live in a house that isn't near an airport only to find they want to build another runway that brings the noise near your house?
"And don't tell me that the number of flights has increased since the 80s - true, but the noise emitted by aircraft has reduced."
I didn't. Why not read my comment properly?