The decision by AP Moller-Maersk to order eight huge new container vessels capable of being powered by methanol is a powerful — and necessary — statement.

It gives a lead to smaller and less financially robust shipping companies struggling to cope with the uncertainty surrounding decarbonisation.

It is a good time to act: the latest United Nations' climate change talks — COP26 — arrive in eight weeks' time hosted by Glasgow.

Pressure is building on the UK to call a halt to new oilfields, such as the Cambo project off Shetland being developed by Shell.