18 Karrie Trauth, Shell Maritime
A slight role change for the energy giant's lead maritime figure, whose status as an industry leader means her views on the global marine fuels' emissions-reduction journey carries weight
Shell remains a friend to fossil fuels in shipping for the foreseeable future, while Trauth's official line is that liquefied natural gas is the leading readily available near-term option, which preserves longer-term options alongside methanol