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Carbon footprint in shipping

 

Main sources

  • 🚢 Fuel combustion (main engine, auxiliary engines, boilers)

  • ⚓ Port operations

  • 🔧 Maintenance & dry-docking

  • 📦 Cargo handling

  • 🏗️ Ship construction & recycling (life-cycle emissions)

Types (IMO context)

  1. Operational carbon footprint

    • Emissions during ship operation

  2. Life-cycle carbon footprint

    • From building → operation → scrapping

Measurement & regulations

  • CO₂e used for comparison of different gases

  • IMO DCS – Data Collection System

  • EEXI – Energy Efficiency Existing Ship Index

  • CII – Carbon Intensity Indicator

  • SEEMP – Ship Energy Efficiency Management Plan

How shipping reduces carbon footprint

  • Slow steaming

  • Efficient voyage planning

  • Hull & propeller maintenance

  • Use of low-carbon fuels (LNG, biofuel, methanol, ammonia)

  • Energy-saving devices

  • Shore power at berth

Why it matters

  • Climate change impact

  • Regulatory compliance

  • Lower fuel cost

  • Better CII rating & charter value

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