Armateurs de France is cheering French President Emmanuel Macron's support for slow-steaming to cut carbon emissions.

The French shipowners group said slow-steaming for tankers, bulkers and gas carriers was the fastest, most obvious and easiest way to reduce the environmental impact of shipping.

"Speed reduction is a simple, cost-effective, immediately operational and a common sense solution for reducing harmful emissions from ships," said Philippe Louis-Dreyfus, chairman of Louis Dreyfus Armateurs.