The regulation includes domestic and international shipping emissions, meaning Britain should 'hurry' in order to achieve IMO's target in making available zero carbon fuel supply in all UK ports, whereby they entirely replace conventional bunker fuels before 2050.

Mrs May continued that the UK has made a great progress in growing its economy, and employment, while in the meantime they managed to slash emissions.

We must lead the world to a cleaner, greener form of growth.

Generally, Britain has been pushing for plans to make the country leader in maritime decarbonisation.

In addition, the Minister for Maritime Nusrat Ghani leads the Clean Maritime Council, launched last year to devise a strategy to reduce greenhouse gas emissions from the sector to improve air quality on and around the country’s waterways, ports and shipping lanes.

Air pollution is the fourth greatest threat to UK public health after cancer, heart disease and obesity. In 2016, domestic shipping accounted for 11% of the country’s nitrogen oxide emissions.