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EPA and NHTSA Issue Notice of Intent to Develop New Greenhouse Gas and Fuel Economy Standards for Light-Duty Vehicle Model Years 2017-2025; Proposal Expected by 30 Sep 2011

Green Car Congress

The 2025 targets analyzed thus range from 190 g/mi (equivalent to 47 mpg under test) under the 3% per year reduction scenario to 143 g/mi (equivalent to 62 mpg under test) under the 6% per year scenario. hybrids, and electric vehicles. Earlier post.). A common theme across the. hybrid/vehicle electrification technologies.

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Study suggests current levels of methane leakage would result in numerous decades of more rapid climate change from a shift to natural gas vehicles

Green Car Congress

Technology warming potential (TWP) for three sets of natural gas fuel-switching scenarios. (A) A) CNG light-duty cars vs. gasoline cars; (B) CNG heavy-duty vehicles vs. diesel vehicles; and (C) combined-cycle natural gas plants vs. supercritical coal plants using low-CH 4 coal. Source: Alvarez et al. Click to enlarge.

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US EPA and NHTSA Jointly Propose New Fuel Economy and Greenhouse Gas Regulations for Vehicles

Green Car Congress

Greenhouse gas and fuel economy levels under the EPA NHTSA joint proposed rulemaking. The proposal builds upon the core principles President Obama announced in May for a harmonized national policy intended to reduce fuel consumption and greenhouse gas (GHG) emissions for all new cars and trucks sold in the US.( mpg in model year 2016.