HUMAN CAUSED climate change is a left-wing political hoax designed to keep getting leftists/liberals re-elected.
The ability for humans to change climate doesn't exist, and it's laughable to think so. However, years ago Denver's 'Brown cloud' was the big deal and steps were taken to reduce particulates, co2, etc. Of course, none of that worked and the brown cloud is as bad as ever. But 'fixing' the brown cloud got a lot of politicians votes! 
So, working locally, if a real solution can be found to a real and specific problem, let's do it. But I can't see anything working when the politicians are only concerned about their next election.