I ride my bike to work, all weather, year round. I use my bike, or walk, for routine shopping trips. My family has a couple of cars, but they are fairly efficient and we use them sparingly. We combine trips and do other things to limit our car use.

My family turns down the thermostat in the winter, and uses no air conditioning during the summer.

I don't eat beef, and eat relatively little meat in general.

I play alcohol powered musical instruments.

I vote. ;-)

But I think that trying to achieve widespread collective outcomes by encouraging individuals to voluntarily modify their behavior has never worked -- it is how I define "utopian." Society can accomplish things collectively when we have a mechanism for engaging in collective effort such as governments. While I have no illusions that governments will lead us to a perfect society either, I think that if we ever manage to address global warming, it will be through the actions of governments.