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dpopa Apr 15, 2013 01:33 PM
I need clarification in relation to the following studies published on EEA’s website:
“Specific CO2 emissions per tonne-km and per mode of transport in Europe, 1995-2009” :[…]/specific-co2-emissions-per-tonne-2

and “Specific CO2 emissions per tonne-km and per mode of transport in Europe, 1995-2011”:[…]/specific-co2-emissions-per-tonne-1
 In the figure referring to 1995-2009 period, the inland navigation was close to railway in terms of CO2 emissions, while in the second figure referring to 1995-2011 period, the inland navigation emissions are close to road emissions. The second figure reflect changes not only for the last two years, but for the entire period starting 1995. For example, the level for road emissions in the first figure was over 120 g/tkm each year until 2009, while in the second figure, for the same years have lower levels: between 80 and 100 g/tkm .
The difference might be the result of an error, or it can as well be something related to calculation methodology (in which case we would like to understand the rationale behind it). Any opinions? Many Thanks,
Replies (1)
EEA Apr 17, 2013 08:53 AM
Dear Dpopa,
The significant change in the CO2 emissions from inland navigation is due to the different TREMOVE version used for the production of the indicator (from 3.1 to 3.3.1). The main change from v3.1 to v3.3.1 was the incorporation of data on non-road transport from the Extremis project, which collected updated data from rail, shipping, and air transport for all EU27 MS.
The possibility of using a different dataset to update the indicator(s) is currently being considered, to ensure consistency with data officially used by the European Commission i.a. for the White Paper on Transport and the Thematic Strategy on Air Pollution.