ISWG-GHG 20-2-31 - Amplifying the policy signal for the production and uptake of e-fuels through the IMO Net-... (CSC)

This document highlights the lack of strong signals from the IMO Net-Zero Framework for e-fuels in shipping’s transition.

September 5, 2025

ISWG-GHG 20-3-7 - Re-establishment of the correspondence group on other social and economic sustainability a... (CSC)

This document encourages the re-establishment of the correspondence group looking at “other social and economic sustainability themes/aspects of marine fuels” for potential inclusion in the 2024 Guidelines on life cycle GHG intensity of marine fuels (2024 LCA Guidelines).

September 5, 2025 By Clean Shipping Coalition

ISWG-GHG 20/3/8: Developing a quantitative risk-based approach to manage indirect land use change emissions under the IMO Net-Zero Framework

This document reviews the treatment of indirect land use change (ILUC) within the 2024 Guidelines on life cycle GHG intensity of marine fuels (2024 LCA Guidelines) (resolution MEPC.391(81)).

September 5, 2025 By Clean Shipping Coalition, Environmental Defense Fund, Pacific Environment, WWF

ISWG-GHG 20-3-9 - Literature review on well-to-tank emissions from liquefied natural gas (LNG) - a case stud... (CSC)(1)

This document shares the findings of a literature review and summary report on the well-to-tank (WtT) GHG intensity of liquefied natural gas(LNG).

September 5, 2025 By Clean Shipping Coalition

ISWG-GHG 20-4-2 - Capturing energy efficiency in the Fifth IMO GHG Study (CSC)

This document presents the rationale for ensuring that the Fifth IMO GHG Study properly captures historic trends and the future potential of improvements in energy efficiency, as distinct from carbon intensity, and further argues for greater transparency and data granularity. It makes suggestions for changes to the draft terms of reference contained in document MEPC 83/7/2 (Secretariat) to those ends.

September 5, 2025 By Clean Shipping Coalition

MEPC/ES.2/2/19: Comments on documents MEPC/ES.2/2 and MEPC/ES.2/3

This document comments on documents MEPC/ES.2/2 and MEPC/ES.2/3 and describes recent international legal developments that Member States must take into account when considering the adoption of the IMO Net-Zero Framework (MEPC/ES.2/2) and the draft work plan to prepare for its entry into force (MEPC/ES.2/3).

August 25, 2025 By Clean Shipping Coalition

MSC 110/6/8: The potential environmental impact of ammonia spills on the marine environment

Following the report of the thirtieth session of the technical group on the evaluation of safety and pollution hazards of chemicals (ESPH 30) and the approval of interim guidelines for the safety of ships using ammonia as fuel which were approved at MSC 109 in December 2024, the co-sponsors of this submission wish to bring to the Committee’s attention concerns around the use of ammonia (NH3) as an energy carrier, which will increase its transport by ship both as fuel and as cargo.

April 11, 2025 By Clean Shipping Coalition, Environmental Defense Fund, Pacific Environment

ISWG APEE 1/2/10: Illustrating the overlap of the CII with the mid-term measures, and proposing Z-factors in alignment with the 2023 IMO GHG Strategy targets

This document presents evidence for the high potential of energy efficiency to contribute to the achievement of the 2023 IMO GHG Strategy, and includes new calculations that show this would require a supply-based carbon intensity reduction factor of 55% by 2030, compared to 2008, equivalent to a reduction factor of 41% by 2030 compared to 2019.

February 18, 2025 By Clean Shipping Coalition

MEPC 83-7-28 - Key considerations to determine the well-to-tank (WtT) emission factor for liquefied natur... (Pacific Environment, CSC...)

This document builds on document ISWG-GHG 17/3 (CSC) to complement the extensive literature review on the well-to-tank (WtT) GHG intensity of liquified natural gas (LNG) imports in the European Union, including information and literature to determine a WtT value for a global default emission factor.

January 31, 2025 By Clean Shipping Coalition, Environmental Defense Fund, Pacific Environment