Could sails replace crude oil on cargo ships?

Seán’s guest spent two weeks aboard the Neoliner Origin, the world’s largest sailing cargo ship, for its maiden voyage from France to the US. But, could sail replace crude oil to power the world’s cargo vessels?

Joining to discuss is Environmental Journalist and author of the upcoming book ‘Present Tense: How we reckon with the end of the world’, Michaela Cavanagh.