At least six countries have called on the International Maritime Organization to adopt ambitious targets to slash shipping’s greenhouse gas emissions well before 2050.

The proposals ask the global shipping regulator to adopt a 37% cut in greenhouse gas emissions from shipping in 2030, compared to a 2009 baseline.

And they would target a 96% slash in 2040, on a path to reaching zero greenhouse gas emissions no later than 2050.

Canada, the US and the UK filed one proposal laying out the tough interim targets ahead of a key working group meeting, with another proposal lodged by the Marshall Islands, Solomon Islands and Vanuatu.