There has been increasing talk in various local sustainability & urban ag groups about the need for neighborhood composting systems, perhaps in the form of one or more compost cooperatives. Opinions vary as to how centralized and "big" this should be. But we all seem to agree there are needs for (a) more soil for urban gardens (because of contamination in many existing urban soils) and (b) better use of local 'waste' materials, such as coffee grounds, brewery waste, food scraps, etc.
What is the next step in moving the conversation forward? Should Transition Milwaukee host a discussion on the topic? Should we invite a wide range of stakeholders, and/or start with one small neighborhood composting project? How/where might such a project operate? Will local codes need to be changed to allow for neighborhood composting?

Feel free to brainstorm here and suggest ways to move to action.
Meanwhile, some links to explore:
Growing Gardens Neighborhood Compost Project, Boulder, CO
Neighborhood Compost Map, a novel way to help neighbors locate nearby compost sites, Philadelphia, PA
Cascade Compost Project, Seattle, WA