Signatories representing 51 localities that make up the U.S. Conference of Mayors (USCM) and the National League of Cities (NLC) have signed an amicus brief in support of the EPA's Clean Power Plan. The brief cites climate change risks which are heightened by the dense concentrations of people, infrastructure, or commerce of urban areas.
The brief explains how the cities are the first line of defense against weather disasters and climate impacts with many already paying the price damage caused by climate change. In the absence of the Clean Power Plan, local governments ambitions to reduce emissions are limited by their lack of control:
Cities’ efforts to adapt to a changing climate and to mitigate its causes are highly sensitive to national policies like the Clean Power Plan, which shape national markets, steer state action, and have the largest impact on nationwide emissions … Cities working to shoulder the burdens of adaptation would therefore face an ever harder—and ever more expensive—task in the absence of the Clean Power Plan