Shipping accounts for nearly 3% of global greenhouse gas emissions, roughly equivalent to the entire aviation sector combined. For decades, decarbonizing large ocean-going cargo vessels seemed nearly impossible due to the enormous power demands of low-speed, two-stroke diesel engines. Japan's successful demonstration of a hydrogen co-fired main engine at 95%+ efficiency at full load changes that calculus entirely. Green hydrogen is no longer confined to buses, forklifts, or s
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