Decarbonising the offshore marine supply chain is a significant challenge that requires collaboration and innovation from all stakeholders involved. Here are some challenges that need to be addressed when decarbonising the offshore marine supply chain:

1. Technology: There is a lack of mature technologies that can efficiently decarbonize offshore marine operations. New technologies, such as alternative fuels, hybrid and electric propulsion systems, and carbon capture and storage (CCS) solutions, are still in the development stage and require further investment to become commercially viable.
2. Infrastructure: Developing the necessary infrastructure to support the use of new fuels and propulsion systems is a significant challenge. This includes building new refuelling and charging stations and retrofitting existing vessels and infrastructure to accommodate new technologies.
3. Regulation: The regulatory framework needs to be updated to incentivize the use of low-carbon technologies and promote decarbonisation. This includes setting ambitious emissions reduction targets, providing incentives for the use of low-carbon fuels, and establishing regulations to reduce emissions from the maritime sector.
4. Cost: Decarbonising the offshore marine supply chain requires significant investment, and low-carbon technologies can be expensive to implement. This can be a barrier for many companies that may not have the financial resources to invest in new technologies.
5. Education and awareness: Education and awareness are essential for the successful decarbonisation of the offshore marine supply chain. This includes raising awareness among stakeholders about the benefits of decarbonisation, providing training and education to ensure the safe and efficient use of new technologies, and promoting best practices for reducing emissions.

Overall, decarbonising the offshore marine supply chain is a complex and challenging task that requires collaboration and innovation from all stakeholders involved. Addressing these challenges will require investment, regulation, and education, as well as the development of new technologies and infrastructure to support the transition to a low-carbon future.