The higher values are largely due to the UBC-UWA research considering regional differences in fuel use based on fishing effort and the amount of fuel used to catch 30 million tonnes of fish that were not reported in 2016. The previous data implied that fisheries contributed only 0.29 per cent of global CO 2 emissions, while the new study indicates that their contribution is almost twice that number. "Until now, the most comprehensive study of carbon dioxide emissions from fishing suggested that for the year 2011, fisheries released 112 million tonnes of CO 2 per year from the combustion of fuel during fishing." "The marine fishing industry relies heavily on the use of fossil fuel and its role in global greenhouse gas emissions has been largely ignored from a policy or management perspective," said Krista Greer, lead author of the study and a researcher with the Sea Around Us at UBC. This is almost the same amount of CO 2 emitted by 51 coal-fired power plants in the same timeframe.
In a study published in Marine Policy, the scientists show that 207 million tonnes of CO 2 were released into the atmosphere by marine fishing vessels only in 2016.
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