What has to happen is for aviation to keep on investing into new technologies that reduce overall pollution. Anyway, that's already happening so any attacks on aviation are extremely pointless.
Drifting OT: I beg to differ. Yes, it will mostly be technology to drive an improved environmental footprint. Though not the only one. Aviation cannot be singled out as "already doing much". One seriously has to ask what the value of many short-haul flights is. Not all are needed in today´s form, and might easily be replaceable, especially if considering total travel time. And I would like to ask why there are will B737-200/300/400/500, MD80s and even DC-9s are flying when we´re already at the 737Max / 320neo generation, which means at least two, if not three generations further. Considering overall safety and environment (al costs such as noise) it could be a fair proposition to put an age limit on planes, too, to ensure that equipment is indeed "today´s technology".
Just because something is new doesn't mean it's better, MAX is the perfect example of that. Furthermore, who decides what's convenient for whom? If there are short flights even today it means they are useful for the community. Random people should not put others at a disadvantage just because.
Bold statements. Governments around the World are doing nothing else than deciding for populations all the time regardless of the section of life.
Aviation is actually an easy one as "improvement metrics" such as noise, fuel consumption etc. are well known and it is easy to see where improvements are made and where not. And, BTW, this is done in many other industries anyway, be it trucking (EURO norms), cars, power plants, ... you name it. Even your heating system at home has to adhere to current redulations, which are tightend all along. Thus there is no specific reason why aviation shoud be singled out not to accept an age-limited or "generation-limit" or similar.
Re short haul flights: I´m not again these flights per se - I´ve been frequently using BRE-AMS and BRE-FRA in the past decades - though except for two or three ocasions these were all with onward connections and I didn´t touch the city at all. The other ones could have been either done with driving or train, if looking at it in retrospective.
Flown: A319/320/321,A332/3,A343/346, A359, A380,AT4,AT7,B712, B732/3/4/5/7/8/9,B742/4,B752/3, B762/763,B772/77W,CR2/7/9/K,ER3/4,E70/75/90/95, F50/70/100,M11,L15,SF3,S20, AR8/1, 142/143,... 330.860 miles and counting.