All of this is in addition to my 9-5.
What else should I be doing?
Also, I don't appreciate your presumption that I have a "defeatist" attitude just because I shared some of my honest thoughts. Next time ask.
I will say however that a lot of the issues you talk about are systemic and larger than what can be affected by local politics. Compositing programs won't address there are still large corporate farms out there that contribute the most to climate change. The same is true of recycling, being vegan or eating local, etc. A lot of change that needs to occur involves regulating large corporations.
It sounds like you're aware of this, but that's how you address the future. I think you agree.
EDIT: leaving my presumptive comment above unchanged so people reading won't be confused.
For example, If we as a society would stop buying cheap food, it would force the hand of these industrial operations to change their behavior.
So I'm taking the time I have now to learn and improve my mentoring and educational skills when working with the local community. In addition to regulation, I also think it's critical that sustainable change occurs from our within society.
While voting with your wallet and trying to be a conscientious consumer is great, the asymmetry between ad=hoc networks of consumers pursuing smarter more sustainable choices and people who are directly invested in selling crap fora quick buck is huge. Since the large industrial concerns can spend a fortune on advertising and demand creation how exactly are you going to 'force their hand'? So far evidence suggests they often just create an additional line of healthier-seeming products at a higher price point that can be marketed to your demographic segment.
Surely you have noticed that there are also people who systematically attempt to undermine such public education efforts. I think you might at least acknowledge their existence and the existence of advertising that attempts to bypass educational channels to sell crappy foods.
EDIT: being a little presumptive here, see below.