looks like an interesting project. i started SOILcoin as a dagger iteration to try to work on some of these same issues, and had toyed with a carbon offset program selling tokens (seedlings) that were ERC20 compliant, that would fund a tree planting campaign thru treescanada to offset the electricity the SOILcoin blockchain consumed as a part of the POW consensus mechanism. thats the sort of thing a project like this could champion, offsetting its carbon footprint, as small as it will be with such a short POW phase. seems like a well thought out project and one ill be investing some into for sure.
~abvhiael