The International Maritime Organization (IMO) has set ambitious targets for the shipping industry. In addition to the 2020 Global Sulphur Cap, shipowners and operators must consider the greenhouse gas (GHG) targets for 2030 and even more ambitious emissions goals for 2050. The regulatory changes set for 2020 – as well as those expected for 2030 and 2050 – will be more disruptive than any past environmental regulations. To achieve cleaner and low carbon emissions, the shipping industry will need a better understanding of existing technologies and strategies while new technology (including fuels) will need to be develop.