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IMO pushes forward with work to meet ship emission reduction targets

IMO is committed to working to combat climate change, in line with the United Nations Sustainable Development Goal (SDG) 13 on climate action.

The IMO Intersessional Working Group on Reduction of GHG Emissions from Ships has made significant progress in pushing forward with work to help achieve the ambitious targets set out in the initial IMO strategy on reduction of GHG emissions from ships, which aims, as a matter of urgency, to decarbonise international shipping in this century.

National Action Plans – draft MEPC resolution agreed

The working group agreed the draft text of an MEPC resolution which would urge Member States to develop and update a voluntary National Action Plan (NAP) with a view to contributing to reducing GHG emissions from international shipping.

It suggests such National Action Plans could include but are not limited to: (a) improving domestic institutional and legislative arrangements for the effective implementation of existing IMO instruments, (b) developing activities to further enhance the energy efficiency of ships, (c) initiating research and advancing the uptake of alternative low-carbon and zero-carbon fuels, (d) accelerating port emission reduction activities, consistent with resolution MEPC.323(74), (e) fostering capacity-building, awareness-raising and regional cooperation and (f) facilitating the development of infrastructure for green shipping.

The resolution would invite Member States to elaborate those arrangements (legal, policy, institutional, etc.) that they put in place or plan to do so to support emission reduction from ships, in accordance with their national conditions, circumstances and priorities.

The resolution would encourage those States which had already adopted national action plans to share their experiences with IMO.

The draft resolution will be submitted to the next Marine Environment Protection Committee session, MEPC 75 (30 March to 3 April 2020) with a view to its adoption.

Candidate measures to further reduce GHG emissions

IMO has already adopted mandatory technical and operational measures to improve the energy efficiency of ships and reduce GHG emissions, including the energy Efficiency Design Index (EEDI) for new ships and the Ship Energy Efficiency Management Plan (SEEMP) for all ships of 400 GT and above (read more here). The initial strategy lists a number of candidate measures which could also be considered to further reduce emissions and help achieve the targets in the strategy, in particular 40% reduction of carbon intensity from shipping by 2030. Short-term measures could be measures finalized and agreed by the Committee between 2018 and 2023, although in aiming for early action, priority should be given to develop potential early measures with a view to achieving further reduction of GHG emissions from international shipping before 2023. Dates of entry into force and when the measure can effectively start to reduce GHG emissions would be defined for each measure individually. A procedure for assessing the impact on States of a measure has been approved.

During the working group session, a number of proposals were discussed.

The group noted that the proposals discussed fell into two goal-based approaches, a technical approach and an operational approach. Further discussion would be needed at the next intersessional working group meeting to develop such proposals further.

Technical approach

Proposals for a technical approach which were discussed included an Energy Efficiency Existing Ship Index (EEXI), which could require ships to meet set energy efficiency requirements after the measure taking effect. Other technical proposals relate to mandatory power limitation on ships.

Operational approach

Operational approaches would include focusing on strengthening the ship energy efficiency management plan, as required in SEEMP. This include proposals for mandatory carbon intensity reduction targets. Operational proposals also include measures to optimize speed for the voyage. Proposals to limit ship speed were also discussed.

There was general agreement in the group that a mandatory goal-based approach for both the technical and operational approaches would provide the needed flexibility and incentive for innovation (a goal-based approach would set the objective to be achieved, while leaving room for a range of methods or innovation to achieve the set goal).

The group agreed that the technical and operational approaches should be further developed in parallel, with informal coordination before the next intersessional meeting.

Assessment of impacts on States

Proponents of the various proposals were invited to provide further details on the initial impact assessment of their proposal, with a view to identifying the remaining issues to be further considered, including whether the proposed measure may generate disproportionately negative impact on some States. Key underlying issues identified by the chair for further consideration included, inter alia: the vital role of shipping for food security and disaster response; the impact on cost of transport and if cost change can be passed on to the customer or not; and special challenges faced by some remote areas.

Alternative fuels

With a longer-term perspective, and in order to encourage the uptake of alternative low- and zero-carbon fuels in the shipping sector, the Working Group also agreed on the establishment of a dedicated workstream for the development of lifecycle GHG/carbon intensity guidelines for all relevant types of fuels. This could include, for example, biofuels, electro-/synthetic fuels such as hydrogen or ammonia, etc. Many participants to the meeting highlighted the importance of undertaking this work as soon as possible, in order to pave the way for the decarbonization of the shipping industry.

Next meetings

The sixth session of the Intersessional Working Group on Reduction of GHG Emissions from Ships met 11-15 November at IMO Headquarters in London, United Kingdom. It was attended by nearly 400 representatives from nearly 70 Member States, as well as from the UNFCCC, the European Commission, the League of Arab States and around 30 non-governmental organizations.

To keep up the momentum, a further seventh meeting of the Intersessional Working Group on Reduction of GHG Emissions from Ships will be held 23-27 March 2020. This is just before and back to back with the next Marine Environment Protection Committee session, MEPC 75 (30 March to 3 April 2020). The MEPC is the decision-making body.

The MEPC is also expected to establish a Working Group on Reduction of GHG Emissions from Ships, to meet during the MEPC session.

MEPC 76 is scheduled to meet 19-23 October 2019. MEPC 76 is expected to receive the completed Fourth IMO GHG Study.

Fourth IMO GHG Study

The Fourth IMO GHG Study will include the following:

  • Inventory of current global emissions of GHGs and relevant substances emitted from ships of 100 GT and above engaged in international voyages. The inventory should include total annual GHG emission series from 2012 to 2018, or as far as statistical data are available.
  • GHGs are defined as the six gases initially considered under the UNFCCC process: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulphur hexafluoride (SF6). The inventory should also include other relevant substances that may contribute to climate change, including Black Carbon (BC).
  • Estimates of carbon intensity (estimates of world fleet’s CO2 emissions per transport work, from 2012 to 2018, or as far as statistical data are available).
  • Possible estimates of carbon intensity of international shipping for the year 2008 (the baseline year for the levels of ambition identified in the Initial Strategy).
  • Scenarios for future international shipping emissions 2018-2050

(The previous, Third IMO GHG Study, was published in 2014).

Source: Hellenic Shipping News/IMO



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