So you know, at some point you think to yourself - why would I stop driving my Euro 6-compliant, modern, very efficient car, that is extremely heavily taxed to offset pollution, to make....what difference? I know if a million other people made the same choice it would make a difference, but it's the same as telling someone who is already leading a very considerate, very heavily taxed lifestyle that they should do their part too, while their neighbour is clearly burning plastic in their front yard, and no one cares.
It's a weird one, because I don't want to say "it's ok for me to pollute a little bit, because there are people who pollute lots", but damn, it is super hard to justify making life even more expensive for myself.
[0] http://www.latimes.com/nation/la-na-dakota-gas-flaring-20140...
"Would you like to breathe some unfiltered exhaust on the side of the road, completely unprotected from the heavy vehicles that pass by at high speeds? Bicycling! Health benefits!"
But seriously, if there is no infrastructure, its quite hard to sell something that depends on it.
I don't think there is much hope for real change if the systematic problems are not addressed.
And of course, showing a good example is still a worthy cause.
Try to get other people to do the same.
I find it's hard to do most of these things, and I don't really have much hope that people will change their habits.
Most people don't even realise that they live in an illusion of reality where "everything is possible, you just have try hard enough".