The International Maritime Organisation’s 2020 limits on sulphur content in ship fuel have been a big positive in lowering vessel emissions.
But scientists and brokers are now arguing that the rules have had an unintended consequence of actually warming the global ocean surface temperature — and that could provide an opportunity to develop solar geo-engineering.
It’s all to do with ship tracks, the lines of clouds formed behind ships by water molecules collecting around the tiny particles from exhausts.
