By Dan Shapley
Those iconic New York City skyscrapers are power hogs, and Mayor Michael Bloomberg wants them tamed. The city's first-ever inventory of greenhouse gas emissions, released yesterday, found buildings accounted for nearly 80 percent of the city's pollution. As a city bounded by oceans and tidal rivers, sea level rise due to global warming is a near and present concern. Look for the mayor's prescription for curbing the city's contribution on Earth Day. Also noteworthy - New York City's per capita greenhouse gas emissions were a fraction of the average United States resident. Thank mass transit and sidewalks for that.