New York Times: The Bloomberg administration moved forward on Thursday with its latest attempt to get taxicab owners to replace their old gas guzzlers with hybrid or other low-emission vehicles. Toward that end, the Taxi and Limousine Commission enacted a set of incentives that allows taxi fleet owners to charge drivers more to drive hybrid or clean diesel cabs. The new rules, which take effect May 1, will also penalize fleet owners by lowering the amount they can charge to lease cabs that use …