Mayor Bloomberg has signed legislation that will require the Office of Long Term Planning and Sustainability to study geothermal energy resources and the feasibility of developing them in New York City. The bill was sponsored by Council Members Gennaro, Garodnick, Brewer, Fidler, Gentile, James, Koppell, Lander, Mark-Viverito, Palma, Williams, Arroyo, Levin, Dromm, Van Bramer, Barron, Eugene, Greenfield, Jackson, Richards, Halloran and Ulrich.