This is a good post. 1/ I am not sure if it matters that social good is hard to value. Even a sloppy metric, even just a boolean – e.g. environment neutral vs n

This is a good post. 1/ I am not sure if it matters that social good is hard to value. Even a sloppy metric, even just a boolean – e.g. environment neutral vs negative – serves the purpose, because by simply existing, people can point at it, tweet about it, start to ask questions, apply peer pressure. A couple good catch phrases is enough to get elected. 2/ I think we probably will figure out how to value things like this in the future. A friend of mine suggested that applying options pricing theory might be interesting - air pollution doesn't have a value today, but it could have a very high value someday in a future worst-case scenario. But that's all above my head and I see that you are much better versed on accounting than me. (I see now our replies crossed so will leave this and stop posting :)