Browse by topic: Publication, Air Pollution, Cars, Climate Change and Energy


Europe's tax deals for diesel

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The gap between petrol and diesel taxes in Europe is quite unique in the world and is the main reason why diesel engines have taken off in Europe and not worldwide. This study analyses fuel price and tax trends since 1980 and adds a specific analysis of diesel tax paid by trucks. It finds that in 2014 the gap in tax levels for diesel and petrol paid by motorists was €0.14/l, which is 30% lower than petrol per unit of energy or tonne of CO2.

The VW scandal and what does it mean for TTIP?

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Unless you have buried your head in the sand over the last couple of days, you would have been hard pressed to miss the VW cheating scandal that has erupted in the United States. A tsunami of media stories have taken over the front pages of the FT, NYT, The Guardian, Le Figaro, Il Sole 24 Ore, to name a few.

Realistic real-world driving emissions tests: a last chance for diesel cars?

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Air pollution emissions limits for cars, vans and trucks (Euro Standards) have been progressively tightened, on paper, over 25 years but have failed to deliver real-world improvements for several key pollutants, notably nitrogen dioxide. This is because obsolete tests and “cycle beating” techniques have been used by carmakers leading to levels of emissions from some cars many times higher on the road than in laboratory tests. In October 2014, the Commission will be discussing progress and next steps with EU member states. This paper outlines key issues for member states to ensure that the new real-world (PEMS) tests are robust and representative of real-world driving in order for emissions to decline on the road. 

Tackling real world emissions from cars

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Light duty vehicles (LDVs) emit more pollutants on the road than in laboratory conditions. In order to solve this problem the Commission decided to introduce complementary type-approval procedures to measure gaseous and particulate emissions during real driving to make sure that they are similar to legal emission limits. To achieve this, the Real-Driving Emissions-Light Duty Vehicles (RDE-LDV) working group was created in 2011. Work in this group is currently focused on RDE tests during initial type approval.

This paper has been prepared by T&E to aid the work of this group. The paper considers the main topics of discussion: data analysis methods, boundary conditions, conformity factor, equipment (portable emissions measurement system – PEMS) and scope.