Breathing Clean: Considering the Switch to Natural Gas Buses

摘要: In response to emerging epidemiological evidence of the toxicity diesel vehicular emissions, there is growing interest in substituting conventional with much cleaner natural gas cities where ambient concentrations particulate matter are markedly higher than what internationally considered acceptable. This paper compares performance and buses, outlines barriers adoption buses developing countries. absence emissions standards that effectively require gas, gas-fueled unlikely be adopted because they more expensive operate relative buses. The social case for replacing a fuel rests on environmental grounds. If local government decides reduction air pollution associated substitution use worth cost, then it needs adopt policies encourage switch gas. These might include or vehicle taxes reflect marginal costs. contribution exhaust from harmful pollutants quantified so health damage costs can estimated.