Global shipping could reach net-zero emissions by 2046, if current momentum holds. The shift is already underway: green hydrogen costs fell more than 80% between 2020 and 2040, and major ports are racing to install zero-emission fueling. If it lands, an industry once seen as impossible to clean up becomes proof that the hardest problems are still solvable.
Shipping emissions just got their first global climate framework — covering the large ocean-going vessels responsible for 85 percent of the industry’s CO₂. Negotiated at the International Maritime Organization in April 2025, the agreement pairs a progressively tightening fuel standard with a carbon price: ships exceeding emissions limits pay in, while near-zero vessels earn rewards. The revenue flows into a dedicated Net-Zero Fund supporting clean energy innovation and easing the transition for small island states and least developed countries already on the front lines of climate change. For an industry long considered one of the hardest to decarbonize — and one that operates beyond any single nation’s reach — this is a quietly historic turn toward cleaner seas and a fairer global transition.
