The Facts on Progress in Auto CO2 Reductions


The auto sector has already made significant carbon reductions in its products.
Fleet-wide automobile CO2 reductions are already more than 22 percent lower than in 2005. According to the 2016 EPA Trends Report, the real-world emissions of new cars and light trucks went from an average of 447 g/mi CO2 in 2005 to 347 g/mi in 2016.

CO2 reductions by the auto sector already approach the Paris goals for 2025.
Under the Paris Climate Accord, the Obama Administration agreed that by 2025 the U.S. would cut greenhouse (GHG) emissions by 26-28 percent compared to 2005 levels.

Current NHTSA/EPA requirements for fuel economy/GHG reductions through 2025 would result in a reduction of more than 50 percent — almost double the stringency of the Paris Agreement during the same timeframe of 2005-2025. While the 2022-25 standards are undergoing a midterm review, the overall contribution of autos to carbon reduction will still greatly exceed the Paris stringency, regardless of the results of the midterm review.

Automobiles represent a shrinking portion of total CO2 emissions, according to EPA data.
Cars and light duty trucks represented 16.45 percent of total US CO2 emissions in 2015, according to EPA’s Greenhouse Gas Inventory. All of US transportation (including rail, airlines, shipping) was 27.5 percent of total US CO2 emissions in 2015.

Progress is demonstrated across the range of products in dealer showrooms.
Consumers enjoy much choice when shopping for energy-efficient autos. This year, more than 480 models are on sale that achieve high mileage (30+ MPG, highway) — up 530 percent from 2007, when there were 76 models. And, the number of models reaching 40+ MPG (highway) is increasing as well, with 74 models on sale in 2017. While gasoline engines are becoming more energy-efficient, consumers can also choose from approximately 50 hybrids and 30 electric vehicles on sale.

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