Shanghai Makes History With First Ship-to-Ship CO2 Transfer, Turning Emissions Into Profit
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📰 The quick summary: Shanghai has successfully completed the world’s first ship-to-ship transfer of liquid carbon dioxide at sea, transforming maritime emissions into valuable commodities while advancing global shipping decarbonization efforts.
📈 One key stat: The Onboard Carbon Capture and Storage system captures over 80 percent of a ship’s CO2 emissions at 99.9 percent purity, potentially generating up to $8 million in annual revenue per ship from selling captured carbon.
💬 One key quote: “Ship-to-ship transfer offers clear advantages over traditional methods. It is significantly cheaper than land transport and enables a single CO2 carrier to handle vastly larger volumes than a tanker truck.“
1️⃣ The big picture: Shanghai has achieved a historic milestone in maritime sustainability by completing the world’s first ship-to-ship transfer of liquid carbon dioxide. This operation took place on June 19th, 2025, when the EVER TOP container ship successfully offloaded captured CO2 to another vessel at Yangshan Deepwater Port. The innovation builds on a 2023 ship-to-shore transfer and uses an Onboard Carbon Capture and Storage system that captures emissions with remarkable efficiency. This breakthrough creates a practical solution for reducing the shipping industry’s massive carbon footprint, which accounts for nearly 3% of global emissions.
2️⃣ Why is this good news: This maritime innovation transforms ship emissions from waste into a valuable commodity, creating a new revenue stream for shipping companies. The carbon capture technology costs significantly less than converting to alternative fuels, making sustainability more economically viable for the industry. The system enables ships to transfer captured carbon mid-voyage without port infrastructure, solving logistical challenges of carbon offloading. Shanghai now has a complete ecosystem for maritime carbon capture, establishing a model other ports and shipping companies can follow. This advancement directly addresses a major source of global emissions while providing a more cost-effective alternative to comply with increasingly strict international regulations.
3️⃣ What’s next: Experts behind the project are already contributing to a new International Maritime Organization working group to define carbon capture protocols for the entire shipping industry. The success in Shanghai will likely influence global standards and inspire further innovations in maritime decarbonization. As costs decrease and technology improves, this approach could be scaled up across the global shipping fleet.
Read the full story here: Sustainability Times – “Carbon Transfer Achieved at Sea”: Shanghai Stuns the World With First-Ever Ship-to-Ship CO2 Operation in Open Waters
