The Guardian. A new report from the International Maritime Organization (IMO) has calculated that annual carbon dioxide emissions from the world’s merchant fleet have already reached 1.12 billion tonnes of CO2—nearly 4.5% of all global emissions of the greenhouse gas and about three times higher than previously believed.
The report suggests that shipping emissions —which are not taken into account by European targets for cutting global warming—will become one of the largest single sources of manmade CO2after cars, housing, agriculture and industry. By comparison, the aviation industry, which has been under heavy pressure to clean up, is responsible for about 650m tonnes of CO2 emissions a year, just over half that from shipping.
Until now, the UN’s Intergovernmental Panel on Climate Change has estimated shipping emissions to be a maximum 400m tonnes, but the new draft report by a group of international scientists is a more sophisticated measure, using data collected from the oil and shipping industries for the International Maritime Organisation, the UN agency tasked with monitoring pollution from ships. It not only shows emissions are much worse than feared, but warns CO2 emissions are set to rise by a further 30% by 2020.