ClimateBiz: The mayors of Savannah, Ga., Lake Placid, N.Y., and Redondo Beach, Calif., have agreed to reduce greenhouse gas emissions in their cities 7 percent below 1990 levels, pushing the number of mayors committing to meet the goals of the Kyoto Protocol past 900. Mayors of New Egypt, N.J. and Springfield, Ill. also signed the U.S. Conference of Mayors Climate Protection Agreement recently, which aims to reduce emissions 80 percent below 1990 levels by 2050. All told, the mayors signed onto …