Another approach is to bury wood in swales or hugelkultur pits. This not only locks carbon underground and feeds plants over time, the slowly rotting wood also becomes a sponge that traps water.
We may not have much luck getting any government in gear, but anyone who has a yard or a farm can do compost. So can small local groups in charge of a town's park system or municipal chiplot. Around here, if you want mulch you can go to the chiplot and shovel up whatever you want. A few days a month the town puts out a guy with a frontloader who will load your pickup truck for free.