Explainers

Ships rely on climate-polluting fuel oil to move huge volumes of cargo. New fuels like methanol and hydrogen, nuclear reactors, batteries, and route optimization are all being explored to curb that pollution.

Hydrogen is the most abundant chemical substance in the universe. It can be used as a fuel that does not produce greenhouse gases when burned.

Biofuel is any liquid fuel made from “biomass”—plants and other biological matter like animal waste and leftover cooking fat.