"Officials in King County and other places are rethinking the way their communities grow and operate, all with an eye toward reducing their overall carbon footprint. After decades of policies that encouraged people to move out to the suburbs in pursuit of larger homes and bigger back yards, some policymakers are now pushing aggressively to increase urban density and discourage the use of private cars."
"In Massachusetts, the state demands that developers calculate and disclose the climate impact of their projects. In California, Attorney General Edmund G. "Jerry" Brown Jr. has sued communities and power companies for failing to offset the greenhouse gases generated by their expansion plans. And Washington, D.C., officials are installing a new trolley line and bike rental kiosks in an effort to cut back on car trips within the city."
"Even though national politicians are beginning to eye a federal carbon cap more seriously, the flurry of activity in state and local jurisdictions highlights a little-noticed reality: Most of the measures to reduce greenhouse-gas emissions will be enacted outside the nation's capital."