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The latest on carbon and cost efficient shipping

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How a CII approach to chartering might increase emissions and cost

To help our customers cut through the complexity of the Carbon Intensity Indicator (CII), Siglar has developed the voyage CII. When we compare a voyage’s CII rating with the voyage's total emissions, a pattern emerges: chartering decisions based solely on CII can actually drive emissions and costs. In this article, we break down why that happens and walk through common voyage scenarios that illustrate the impact.

Key outcomes of IMO MEPC79

The IMO 79th Marine Environment Protection Committee meeting took place this month and discussions around the reduction of GHG emissions from ships took centre stage.

COP27 – Shipping and decarbonisation

The very short COP27 shipping summary: The drive to decarbonise the shipping sector is growing, parties in the value chain are collaborating and initiatives that show most progress are linked to developing green shipping corridors, zero-emission fuels and vessels, as well as infrastructure to support the transformation of the industry.

Emission Schemes

Djibouti Sovereign Carbon Initiative

The Governments of Djibouti and Gabon have introduced sovereign carbon registry frameworks that apply a carbon cost to qualifying ship movements to and from their ports.

African Sovereign Carbon Initiatives: Countries Under Discussion

A growing number of African countries are in active discussion about introducing their own Sovereign Carbon Initiatives for maritime shipping, following the model pioneered by Djibouti (2023) and Gabon (2025). No schemes are yet in force in these countries, but the commercial direction of travel is clear: more African port calls are likely to carry a carbon cost in the coming years.

Türkiye Shipping Greenhouse Gas Emissions Fee

Türkiye has adopted a shipping-specific greenhouse gas fee intended to apply to greenhouse gas emissions from commercial ships calling at, or departing from, Turkish ports for cargo or passenger operations. The operational details are to be defined in secondary regulation that has not yet been published.

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"We want to help sustainable shipowners achieve higher fleet utilization and improved return on their green investments. "

Geir Olafsen, CDO Siglar
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