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.