Shipping has been addicted to fossil fuels since the 19th century but the industry must now wean itself off these sources of energy as the reality of the Paris Agreement on climate change starts to bite.

The IMO’s 0.5% cap on fuel sulphur content kicks in on 1 January 2020. But Chris Chatterton, chief operating officer of trade organisation the Methanol Institute, says it represents just a “small bump in the road” compared with what is to come.