Shipping is one of the dirtiest industries. Now it's trying to clean up its act
Built by Compagnie Maritime Belge (CMB), it's the world's first sea-faring vessel to burn hydrogen in a diesel engine. No carbon dioxide or sulfur oxides are released during the process. The ship produces some nitrogen oxide, but that's converted into harmless nitrogen and water by a catalyst. In one of the dirtiest industries in the world, it's a tantalizing glimpse of a cleaner future.