On April 22, Mayor Michael Bloomberg of New York City announced a 25-year plan to create ?the first environmentally sustainable 21st-century city.? But the 127 projects, laws, and initiatives the mayor proposes?from charging drivers US$8 a day to enter Manhattan to increasing the energy efficiency of new buildings by 20 percent?are only a handful of the many local-level environmental policies cropping up across the United States.
TF: World Heritage 
On April 22, Mayor Michael Bloomberg of New York City announced a 25-year plan to create ?the first environmentally sustainable 21st-century city.? But the 127 projects, laws, and initiatives the mayor proposes?from charging drivers US$8 a day to enter Manhattan to increasing the energy efficiency of new buildings by 20 percent?are only a handful of the many local-level environmental policies cropping up across the United States.