Every conversation about alternative marine fuels eventually arrives at the same obstacle. Methanol, ammonia, and hydrogen all require a different ship. New engines, new tanks, new bunkering infrastructure, crew trained on a toxic or cryogenic fuel, and a capital commitment made against a supply picture nobody can forecast. Biofuels sidestep most of that. Approved blends burn in engines already in service, delivered through bunkering infrastructure that already exists, by bar
