Third IMO Greenhouse Gas Study 2014

30 Third IMO GHG Study 2014
Figure 20: IEA gas/diesel sales in shipping 2007–2011
Figure 21: IEA natural gas sales in shipping 2007–2011
The IEA statistics explicitly designate fuel to ships as either international or domestic navigation, while fishing
vessel fuel statistics group international and domestic fishing activities together from 2007. The allocation
of total marine fuels provided to ships depends upon the data quality aggregated by IEA from national fuel
reports and ancillary statistical sources. (Issues of data quality and uncertainty in IEA statistics are addressed
in Sections 1.4 and 1.5.) For completeness, this section reports the top-down allocation provided in the IEA
statistics for all three marine fuel designations.
Table 9 reports a summary of IEA data of the fuels most used in shipping over the three different categories
in million tonnes, where natural gas data were converted to tonnes oil equivalent using IEA unit conversions
(1 TJ = 0.0238845897 ktoe).