Global Carbon Tax on Shipping Blocked Amid U.S. Pressure

20.10.2025 Lisa McAuley, CEO
Global Carbon Tax on Shipping Blocked Amid U.S. Pressure

At the International Maritime Organisation (IMO) meeting in London, a significant setback occurred for global climate initiatives as the proposed global carbon tax on shipping emissions was delayed by a year. This decision came after intense lobbying from the United States, and support from countries like Saudi Arabia.

The proposed "Net-Zero Framework" aimed to impose a carbon tax on shipping fuels and enforce emission standards, vital for steering the industry—responsible for around 3% of global greenhouse gas emissions—towards decarbonisation by 2050. The agreement had been broadly supported and expected to pass, but due to U.S. threats of trade retaliation and political pressure, more than half of the member nations voted to postpone the decision by a year.

Environmental advocates and the shipping industry expressed disappointment, warning that the deferral introduces uncertainty and delays critical investments needed to reduce emissions. This development mirrors recent setbacks in international climate agreements and raises concerns ahead of the COP30 summit.

The delay in implementing the carbon tax on shipping emissions represents a significant challenge in global efforts to combat climate change. As the shipping industry continues to be a major contributor to global greenhouse gas emissions, the need for effective regulatory measures remains pressing. The international community now faces the task of navigating geopolitical tensions and finding common ground to advance meaningful climate action in the maritime sector.

The IMO's decision underscores the complex interplay between environmental objectives and national interests, highlighting the challenges in achieving global consensus on climate policies. As discussions continue, stakeholders must consider innovative approaches and collaborative efforts to address the environmental impact of shipping and move towards a sustainable future.