Madison is developing a cutting-edge transit system by introducing five new hybrid buses onto the roads. The move is part of Mayor Cieslewicz's 100K Clean Energy Challenge, which attempts to reduce the city's CO2 emissions 100,000 tons by the year 2011. To read General Motors' press release, visit http://www.prdomain.com/companies/G/GeneralMotors/newsreleases/200791345....