Information resources for sustainability in WI

It might be an interesting project to ask WI librarians what kinds of sustainability information resources they provide to their publics (and what resources their publics actually use). Or perhaps we in SLIS could take the lead in suggesting/compiling a list of such resources. For example, one that I'd promote would be the new map of public transportation options for statewide travel in Wisconsin, Getting Around Wisconsin Without a Car: A Public Transportation Guide, put together by the activist group 1000 Friends of Wisconsin. What others have people found -- and used?