News
Opportunity Green, Environmental Defense Fund, One Planet Port, Pacific Environment, Clean Shipping Coalition, Seas at Risk, and ZESTAs call for a precautionary approach to managing toxic ammonia effluent from ammonia-fueled ships
February 13, 2026
As a meeting of the International Maritime Organization’s (IMO) Sub-Committee on Ship Design and Construction (SDC 12) opened today in London, the Clean Shipping Coalition called for member states to ensure that technical needs that directly support policy tools are prioritised and not delayed by IMO member states, and that member states expedite action to reduce underwater noise from shipping globally.
January 19, 2026
As a meeting of the International Maritime Organization’s Intersessional Working Group on Reduction of Greenhouse Gas (GHG) Emissions from Ships (ISWG-GHG 20) closes in London, the Clean Shipping Coalition (CSC) applauds IMO Member States for rising above last week’s rancour – when the IMO decided to hold off on adoption for one year – by pushing ahead with preparations for adoption of the Net Zero Framework.
October 24, 2025
Publications
This document comments on document PPR 13/17/1 and highlights that development of guidelines for managing ammonia effluent generated from ammonia-fuelled ships must account not only for the acute and short-term toxicity of ammonia effluent, but also the wider impacts of reactive nitrogen release, including impacts to marine organisms from chronic, long-term ammonia effluent release, and disturbance to the nitrogen cycle. Prohibiting discharge of ammonia effluent to the marine environment is the management measure best aligned with the precautionary principle.
December 19, 2025
This document provides comments on the report of the Correspondence Group on Underwater Radiated Noise, supporting the proposed establishment of a working group at this session and providing input on next steps under the proposed terms of reference for this group.
November 27, 2025
This document shares the findings of a study on the potential underwater radiated noise (URN) impacts of LNG development on marine mammals in the Gulf of California. The report examines the effects of URN from LNG tanker traffic on migratory and resident whales, as well as related impacts on air quality and greenhouse gas (GHG) emissions.
October 17, 2025
