Local officials from more than 200 municipalities in 15 states, including city councils, town boards, and county legislatures, have banned natural gas drilling that uses hydraulic fracturing, commonly referred to as fracking. These officials have decided that fracking poses an unacceptable risk to the drinking water, health, and future of their communities. However, state governments and corporations have started legally challenging these efforts, a move that would strip the power of democratically elected local governments to establish quality-of-life protections their constituencies want.