Shipping emissions were 2.3 MtCO2e in 2018, an increase of 3% from 2017 and 44.4% below the 1990 baseline. Shipping emissions accounted for 15.5% of transport emissions.
Both domestic and international shipping emissions fell in 2018, with domestic shipping accounting for 2 MtCO2e and international shipping accounting for 0.34 MtCO2e. This is an all-time low for international shipping. Since 1990, domestic shipping emissions have fallen by 41.8% and international shipping emissions have fallen by 56.1%.
Figure 10 illustrates the year-on-year change in Scotland’s shipping emissions.
Figure 10: Time series of Scotland’s shipping emissions, 1990-2018 (Source: NAEI)