Measurement and Reporting of CO2 Emissions from Gas Carriers

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This document provides high-level guidance to assist the gas shipping industry in its efforts to reduce carbon dioxide (CO₂) emissions. CO₂ is considered a greenhouse gas (GHG), and it is vital to minimise the environmental impact from the transportation of liquefied gas. This is the first document in a series that plans to address this issue. As a first step, this document provides guidance on the standardised measurement and reporting of CO₂ emissions.

This document identifies typical sources of CO₂ emissions from gas carriers and describes the methodologies for measuring CO₂ emissions. The reporting standards set by the International Maritime Organization (IMO) and European Union (EU) for CO₂ emissions are then explained, covering both technical and operational efficiency.