International Maritime Organization

Shipping liner

Global sulfur dioxide emissions from shipping dropped sharply with the introduction of new rules in 2020

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In 2020, the International Maritime Organization introduced strict limits on marine fuels: the maximum percentage of sulfur allowed in fuels fell from 3.5% to 0.5%. All ships worldwide had to comply. As a result, there was a dramatic fall in global sulfur dioxide emissions from over 10 million tonnes a year in 2019 to 3 million tonnes a year later, helping abate local air pollution and acid rain.

Cargo ship in harbor

A majority of nations agrees to global tax on shipping emissions for first-time ever

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Two weeks of talks at the U.N.’s International Maritime Organization have concluded in London, with a clear majority of countries emerging in favor of a historic, first-ever global emissions levy. The shipping sector, which accounts for 3% of global emissions and transports more than 90% of global trade, is regarded as one of the hardest industries to decarbonize, partly owing to the vast amounts of dirty fossil fuels the ships burn each year.

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