If I had to spend $1bn now, I would order methanol tankers, while working together with a good partner.
This article is part of a series written by people across shipping in response to this question about how to deploy a hypothetical TradeWinds Sustainable Shipping Fund:
How, where and why would you invest $1bn for the best return in sustainable shipping, as the industry grapples with the need to cut carbon emissions, improve efficiency and keep cargoes moving in a world facing multiple economic and political challenges? The investment will be made now and ideally held for the next seven years to the end of the decade.