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A recent study by the International Council for Clean Transportation (ICCT), based in Washington, reveals that CO2 emissions from vehicles are not dropping as fast as expected.
For example, data from the European Union shows that emission levels in Germany have declined from 179 g/km in 2001 to 152 g/km in 2010, which would represent a 15% improvement. However, according to the ICCT, they actually went from 192 g/km to 179 g/km during the same period.
So, what's the deal?
Real-world results in Europe may differ more from the test figures than in the United States, where the EPA's ratings are based on the best-selling version of a vehicle.
The good news is that a United Nations project is working on a new global mileage test that would allow better comparisons across continents and provide a more accurate picture of a vehicle's emission levels.
Source: Wards Auto
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For example, data from the European Union shows that emission levels in Germany have declined from 179 g/km in 2001 to 152 g/km in 2010, which would represent a 15% improvement. However, according to the ICCT, they actually went from 192 g/km to 179 g/km during the same period.
So, what's the deal?
Real-world results in Europe may differ more from the test figures than in the United States, where the EPA's ratings are based on the best-selling version of a vehicle.
The good news is that a United Nations project is working on a new global mileage test that would allow better comparisons across continents and provide a more accurate picture of a vehicle's emission levels.
Source: Wards Auto