Currently there are no regulations controlling black carbon emissions from shipping. Black carbon accounts for 21% of CO2-equivalent emissions from ships, making it the second most important driver of shipping’s climate impacts after carbon dioxide. ![]() The highest amounts of black carbon particles are produced by ships burning heavy fuel oil. Shipping also contributes to climate change through emissions of Black Carbon, tiny black particles, produced by combustion of marine fuel. Under a business-as-usual scenario and if other sectors of the economy reduce emissions to keep the global temperature increase below 2 degrees Celsius, shipping could represent some 10% of global GHG emissions by 2050. The latest update to the study by CE Delft projects shipping emissions to increase by up to 120% by 2050 if other sectors decarbonise successfully. The Third IMO GHG Study (2014) estimated that for the period 2007-2012, shipping emitted about 1,000 Mt CO2 per year, equaling approximately 3.1% of annual global CO2 emissions. ![]() What is the impact of shipping on climate change?
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