Clean Cargo Methodology Update 2025: Transitioning from Assumed to Actual Data in Ocean Freight Emissions

Published on August 6, 2026

Clean Cargo has updated its methodology to calculate ocean freight emissions using actual carrier-reported transport activity (TEU-km) data at vessel level instead of a standardized 70% vessel utilization assumption. This change improves the accuracy and credibility of emissions data but introduces a break in comparability between 2024 and 2025 values. As a result, reported emission intensities for 2025 may appear higher or lower depending on actual reported TEU-km relative to the previous 70% assumption. These changes are methodology-driven and do not necessarily reflect changes in operational performance.

Clean Cargo - 2026 Global Ocean Container Emissions Report Corrected 04 08 26.pdf
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