DUBAI -- Under the steaming midday sun, a vessel with a large, lime-green circle emblazoned on its side docks near the site of the United Nations climate conference (COP28) here.
The colorful ship is the FFI Green Pioneer, the product of an 18-month engineering project by Australian metal, energy and green-tech company Fortescue to convert ship engines to run on a mix of green ammonia and diesel. Green ammonia is produced in a process that emits no carbon dioxide, typically powered by renewable energy.

