Denver Post: "The top environmental issue in most American communities is how to save nearby farmland or build new local parks." To me, this is a crucial subject in aging suburbs. Economic pressures are forcing greater density in those suburbs, but I've yet to hear of any instance where a suburb gained so much additional population, that a new park was carved out through redevelopment. Until we have some success stories in this regard, the NIMBYs will have a field day.