Greta Thunberg thundering at the UN ­Climate Action Summit in New York; 1m people joining the global school student strike; and growing talk about the need for a Green New Deal. World attention is again focused on the enormous threat posed by global warming and carbon pollution.

Yet confusion continues in the maritime world about how to make concrete progress.

So the unveiling of the Getting to Zero Coalition, bringing together 70 maritime companies and organisations committed to decarbonisation, came just at the right time.