30 May '11, 9pm

New Vehicle Labels Take Three Steps Forward, One Step Back

New Vehicle Labels Take Three Steps Forward, One Step Back

The new vehicle fuel economy label announced today by EPA and DOT beats the current label , providing better information on fuel costs and adding emissions of both greenhouse gases and traditional air pollutants. The new label takes on the confusing matter of the divergence of fuel economy and greenhouse gas performance when fuels other than gasoline enter the mix, showing for example how a diesel vehicle does better on miles-per-gallon than on CO2 emissions, while the reverse is true of natural gas vehicles. The label falls short on other counts, however. The “Fuel Economy & Greenhouse Gas Rating” is unaccountably weaker than EPA’s existing rating scheme , giving a 38 mile-per-gallon vehicle a perfect 10, for example. The label also fails to clarify the performance of plug-in vehicles. It contains a lot of useful information about these vehicles, but doesn’t answer a basi...

Full article: http://www.aceee.org/blog/2011/05/new-vehicle-labels-take...

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