Green Car Congress

OCTOBER 1, 2010

The US Department of Transportation’s (DOT) National Highway Traffic Safety Administration (NHTSA) and the US Environmental Protection Agency (EPA) issued a Notice of Intent (NOI) to begin developing new standards for greenhouse gases and fuel economy for light-duty vehicles for the 2017-2025 model years. Earlier post.). Technologies.

Fuel Economy 199

Fuel Economy EPA 2017 Economy 199

Green Car Congress

SEPTEMBER 15, 2009

Greenhouse gas and fuel economy levels under the EPA NHTSA joint proposed rulemaking. These standards would require them to meet an estimated combined average fuel economy level of 34.1 mpg in model year 2016. mpg if the automotive industry were to meet this CO 2 level all through fuel economy improvements.

Fuel Economy 210

Fuel Economy EPA Economy Gas 210

Green Car Congress

APRIL 10, 2012

Using this approach, they found that converting a fleet of cars from gasoline to CNG would result in decades of more rapid climate change because of greater radiative forcing in the early years after the conversion. Reductions in CH 4 leakage are needed to maximize the climate benefits of natural gas.

Climate Change 270

Climate Change Climate Gas Coal 270