The Japanese government has written to senior European Commission environment officials, urging them to drop plans for a regional shipping emissions trading system (ETS).

Brussels is preparing to outline its shipping ETS, and the International Maritime Organization is meeting to approve long-awaited decarbonisation measures.

Shinichiro Otsubo, director ­general at the Japanese Ministry of Land, Infrastructure, Transport & Tourism, has written to the EC’s Raffaele Mauro Petriccione, director general for Climate Action, and Henrik Hololei, director general for Mobility...