The Clean Arctic Alliance, a coalition made of non-profit organisations (NGO), on Monday (27 January) called for the International Maritime Organization (IMO) to support an immediate switch to distillate fuels for ships in the Arctic and develop a global rule prohibiting fuels with high Black Carbon emissions.
VLSFO and LSHFO usage will contribute to a massive increase of Black Carbon emissions which represents 7% to 21% of shipping’s overall GHG equivalent impact on the climate, it says.
Clean Arctic Alliance is calling for IMO to support an immediate switch to distillate fuels for ships in the Arctic.
“If immediate action isn’t taken by the International Maritime Organization, the shipping industry’s use of very low sulphur fuel oil (VLSFO) – introduced to comply with the 2020 sulphur cap – will lead to a massive increase in Black Carbon emissions, and this will both accelerate the melting of Arctic sea ice and have a major impact on Earth’s climate,” said Clean Arctic Alliance Lead Advisor Dr Sian Prior.
A paper submitted by Germany and Finland to the IMO’s PPR7 meeting in February found these new blends contain high levels of aromatic compounds which, when combusted, lead to an increase in emissions of Black Carbon when compared with heavier fuels and distillate fuels.
Black carbon is a short-lived climate forcer (SLCF), second only to CO2 in terms of international shipping’s contribution to global climate.
Seas at Risk Senior Policy Advisor John Maggs commented there are serious questions to be answered about how these blended super pollutant ‘Frankenstein’ fuels ever came to market.
“It beggars belief that amidst a global climate crisis, the marine fuel industry could develop these VLSFOs without knowing their effect on Black Carbon emissions and the climate, particularly in the Arctic – especially as the IMO has spent almost a decade considering how to reduce Black Carbon emissions from shipping,” he added.
The Clean Arctic Alliance has written a letter containing the following questions to representatives of the marine fuel industry who prepared the definitive guidance on the supply and use of 0.5% sulphur marine fuel only months ago, to ask:
The letter was sent to IACS, IBIA, IPIECA, IMarEST, IUMI, OCIMF, and the Royal Institute of Naval Architects – all of whom have consultative status to the IMO. The letter was also sent to ARA, Concawe, CIMAC and JPEC. All of the organisations are named as co-authors of of the Joint Industry Guidance on “The supply and use of 0.50%-sulphur marine fuel” published in August 2019.
“At next month’s PPR 7 meeting in London, the IMO must support an immediate switch to distillate fuels for ships in the Arctic and agree to develop a global rule prohibiting fuels with high Black Carbon emissions; in addition, IMO Members must adopt a resolution calling on shipowners, charterers, and fuel providers and other stakeholders to implement these measures on a voluntary basis while new regulations are developed and enter into force,” concluded Prior.
How the Super Polluter Fuels Were Discovered
Germany and Finland have submitted a paper to February’s Sub-Committee on Pollution Prevention and Response (PPR7) at the International Maritime Organization detailing the results of a measurement campaign which analysed the impact of different fuel oil qualities on Black Carbon emissions, including new low sulphur heavy fuel oil (LSHFO) which comply with the 2020 sulphur cap. The paper states that the findings “clearly indicate that new blends of marine fuels with 0.50% sulphur content can contain a large percentage of aromatic compounds which have a direct impact on Black Carbon emissions”, and “demonstrated that the combustion of fuels with higher aromatic content emits higher concentrations of Black Carbon”.
The Joint Policy Guidance on the supply and use of 0.5% marine fuel published by the marine fuel industry in August 2019, makes no mention of low sulphur fuel blends containing high levels of aromatic compounds nor of an increase of Black Carbon emissions of potentially up to 2.45 times that of distillate fuel.
When burnt these new fuel blends resulted in a 10 to 85% increase in Black Carbon emissions compared to heavy fuel oil and between 67% to 145% (a 2.45 times increase) when compared to DMA – the highest quality distillate fuel (along with DMZ) that is normally supplied for marine use. This work has profound implications for IMO’s efforts to reduce the impact of Black Carbon emissions on the Arctic, and for the shipping and oil refinery sectors’ response to climate change.
Did the fuel suppliers know that this would happen?
There were warning signs. The 2017 update of the IMO 2012 study Investigation of Appropriate Control Measures (Abatement Technologies) to Reduce Black Carbon Emissions from International Shipping (PPR 5/INF7) stated that “fuel factors such as heavy metal, oxygen, asphaltene and poly-aromatic hydrocarbon and ash content contribute to combustion characteristics” and thus Black Carbon emissions. Moreover, high aromatic content of fuels was recognized as likely having an influence on Black Carbon emissions, and was one of the contributors to the variability in Black Carbon reductions, i.e. 33% and 45%, when switching from residual to distillate fuels.
What’s the history of Black Carbon as a policy issue for shipping?
In 2011, the United Nations Economic Cooperation for Europe (UNECE) urged the IMO to act on Black Carbon, while in 2013/14 the Climate and Clean Air Coalition (CCAC) renewed a call for action on ship Black Carbon. In 2017, the Arctic Council established a target of a 25 – 33 percent reduction in Black Carbon emissions below 2013 levels by 2025 for all sources.
Photo credit: International Maritime Organisation
Published: 28 January, 2020
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