It's refreshing to see a major urban center like Chicago already developing a vision for transforming its older areas into a variety of projects that redress the climate change issues with effective planning. This approach retains the urban green areas and revitalizes natural wetlands and river areas. It's basically a "redo" rather than a sprawl solution, appropriately sited and developed.
Moving forward on the Chicago Climate Action Plan in conjunction with city government, Adrian Smith + Gordon Gill (AS+GG) has released the first phase of its Chicago Central Area DeCarbonization Plan. Targeting the Windy City’s downtown Loop area, the action plan aims to reduce carbon emissions 25 percent below 1990 levels by 2020, and then meet 2030 Challenge goals of 100 percent carbon emissions reduction in new and renovated buildings by 2030. The full article is here.
Our major cities in California are not developing "the big vision" in this way yet. If they did, it would absorb all the development and housing requirements needed regionally as well as contain the carbon issues in the very places where the most pollution is created.