These two posts may be of interest. In any case, all comments and suggestions are welcomed.
1. A Path Towards Carbon Negative Heating
2. A Path Towards Low Carbon Agriculture
The second link lists 5 possible policy options, with a 6th in the comments, that might be considered. Note: none mentions biochar, but agreement with more than a few pretty much eliminates all but Biochar. The idea is not to pick winners and losers, nor to tell elected officials what they have to do, and not to give policy staff one word they do not understand but gives them an excuse to walk away from the entire idea.