The IMO and its strategy to cut emissions

IMO & MARPOL Nov. 25, 2024
The IMO and its strategy to cut emissions

The International Maritime Organisation (IMO) establishes international regulations and guidelines for environmental protection and energy efficiency to reduce ship emissions. A total of 176 countries are members of the IMO and commit to working towards its strategic targets for a greener shipping industry.

The IMO is a specialised agency under the United Nations established in 1948. The IMO establishes intergovernmental regulations which promote safety at sea, protect the marine environment, and regulate the shipping industry's impact on the climate.

The Marine Environment Protection Committee (MEPC) is a key committee within the IMO tasked with overseeing all environment-related issues in shipping under the organisation’s remit.

Towards net zero in 2050

In 2023, the 80th session of the MEPC was convened, during which member states of the IMO adopted a revised strategy to achieve net-zero greenhouse gas emissions from international shipping by or around 2050. This strategy marks a significant step up from the initial goals set in 2018 and includes specific milestones for 2030 and 2040, aiming for a reduction in total GHG emissions from international shipping by at least 20%, striving for 30% by 2030, and by at least 70%, striving for 80%, by 2040, compared to 2008 levels.

 

Key elements of the strategy

The strategy involve the adoption of alternative zero and near-zero GHG fuels by 2030. The ambition is for such fuels and energy sources to represent at least 5% - and preferably 10% - of the energy used by international shipping by 2030.

The strategy also involves the development of a basket of mid-term measures including both technical and economic elements, such as a goal-based marine fuel standard and a maritime GHG emissions pricing mechanism.

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IMO 2023 strategy sets path for legally binding GHG measures by 2027

While this revised strategy is not legally binding, the measures play a key role because they can be. For example, the Energy Efficiency Existing Ship Index (EEXI) and the Carbon Intensity Indicator (CII) which was a part of the initial GHG strategy are legally binding because they are incorporated into an international treaty, the International Convention for the Prevention of Pollution, MARPOL.

 

The 2023 IMO Strategy outlines critical phases leading up to the approval of a 2028 IMO GHG Strategy. This strategy anticipates the approval of mid-term measures during MEPC 83 in Spring 2025, with the adoption scheduled for a special extraordinary session of the MEPC in Autumn 2025. This timeline is designed to facilitate the measures' entry into force by 2027.

Energy Efficiency Existing Ship Index (EEXI) and the Carbon Intensity Indicator (CII)

To support the implementation of the strategy, two measures entered into force in 2023: the Energy Efficiency Existing Ship Index (EEXI) and the Carbon Intensity Indicator (CII). These measures are legally binding and are expected to drive down emissions, although their current iterations may not be stringent enough to achieve the strategy's goals. CII are set to be revised by no later than January 1, 2026, to potentially include more effective regulations.

At the end of the MPEC81, the IMO secretary general Arsenio Dominguez stated;

“To achieve the goals, concerted action is required, and this week your Committee will further consider proposals on candidate mid-term measures; a progress report on the Steering Committee on the conduct of the comprehensive impact assessment of the basket of candidate mid-term measures; and the further development of the life cycle GHG intensity assessment framework,” Arsenio Dominguez said.

At Arsenio Dominguez's opening speech at MPEC81, he added: 

“Decarbonising the maritime industry is a big challenge, but also an opportunity to align the international shipping sector with global commitments on climate change and sustainability”. 

The 2023 IMO Strategy set a new direction for the shipping industry towards decarbonisation. The industry faces a challenging path ahead in meeting these targets, requiring concerted efforts and innovation across all sectors involved in international shipping.

Read more about IMO and MEPC here.