Table 1 Summary of emissions (and fuel consumption) of this work using STEAM for 2020 compared with Third IMO GHG Study (Smith et al.12) and all non-shipping emissions

From: Cleaner fuels for ships provide public health benefits with climate tradeoffs

Pollutant (000 tonnes) Third IMO GHG study estimate for 2012 2015 estimate 2020 BAU without IMO standard 2020 action with IMO standard 2010 non-shipping emissons HTAPV2/MEIC73
NO X 19,000 20,100 21,300 21,300 75,310
SO X 10,200 11,500 11,000 2500 99,071
PMa 1400 1540 1500 770 17,338
CO2 938,000 814,000 860,000 870,000
Fuel Usageb 254,000 (t-d) 300,000 (b-u) 263,000 277,000 274,000