extraordinarily heavy, as the shipping company accounts for over 80% of the danish top 30 companies' emissions of carbon dioxide from operations, and in the overall calculation, the CO2 reductions in many of the other companies are therefore balanced by the fact, that Mærsk has increased emissions by 2% since 2019, with a total of 37 million tonnes in 2021, but presented plans to be CO2 neutral as early as 2040. Since the Danish climate targets of a 70 percent CO2 reduction in 2030 are territorial based, emissions from foreign shipping and aviation from Danish ports and airports, and internationally, are not counted, as the responsibility lies with the UN's organizations for aviation (ICAO) and shipping (IMO). However, IMO has committed to halving the industry’s greenhouse-gas emissions by 2050, and because 80% of global trade (around 11 billion tonnes) is transported by sea each year, global shipping generated about 1,000 million tonnes (3%) of carbon dioxide emissions in 2018. From territorial based point of view, the Maersk fleet is not obliged to make reductions, but instead pay through slightly higher taxes from the emissions, to a fund based on taxes from the fleets use of bunker fuel, which will be able to compensate and finance climate measures, a concept developed by the Ministry of Climate and the Danish Maritime Authority. In 2008, it was calculated by the DK Group, that the Maersk fleet together released just over one million tonnes of sulfur dioxide SO2 per year from the fleets use of bunker fuel, and at the time until 2014, when China Shipping Lanes took over by one meter and 20 percent less fuel emissions, the world's largest container ship Emma Mærsk emits SO2 equivalent to 50 million cars. "These are figures that are publicly available. But they have probably not really come to light because shipping has been totally unregulated. But when the biggest ships sail out, you have to imagine that 50 million cars will follow," says Jørn Winkler, founder of DK Group. For example, there are filters that remove virtually all sulfur dioxide and nitrogen, but the price of a filter for a large container ship is DKK 25 million. By comparison, Maersk uses approximately DKK 46 billion worth of fuel per year (expenses deducted as a cost in company tax calculations), and "In the past 20 years, it has been possible to remove the particles from the