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Carbon Footprint
& GHG Accounting

Comprehensive greenhouse gas emissions accounting is the foundation of maritime decarbonization. From direct vessel emissions (Scope 1) through purchased energy (Scope 2) to full value chain emissions (Scope 3), accurate carbon footprint measurement enables science-based target setting, regulatory compliance, and credible stakeholder communication. We help maritime companies quantify, report, and reduce their carbon footprint using GHG Protocol methodology, aligned with IMO targets, CSRD requirements, and investor expectations.

GHG ProtocolScope 1–2–3Science Based Targets

Understanding Maritime Carbon Footprint

International shipping accounts for approximately 2.8% of global GHG emissions (~1 billion tonnes CO2e annually). The GHG Protocol Corporate Standard provides the globally accepted framework for measuring and reporting emissions across three scopes.

Scope 1 covers direct emissions from owned/controlled vessels (fuel combustion — HFO, VLSFO, MGO, LNG), company vehicles, and office heating. Scope 2 captures indirect emissions from purchased electricity for shore offices, port facilities, and cold ironing/shore power. Scope 3 encompasses value chain emissions including shipbuilding, drydocking, bunker fuel production (well-to-tank), port operations, crew travel, and purchased goods & services.

For shipping companies, Scope 1 typically represents 90–95% of total emissions, dominated by vessel fuel consumption. The IMO 2023 GHG Strategy targets net-zero GHG emissions by or around 2050, with indicative checkpoints of 20% reduction by 2030 and 70% by 2040 (vs 2008).

Scope 1 covers all direct vessel and operational fuel combustion
Scope 2 accounts for purchased electricity at offices and port facilities
Scope 3 includes well-to-tank fuel emissions, shipbuilding, crew travel, and supply chain
GHG Protocol methodology ensures consistency and comparability
Science Based Targets initiative (SBTi) provides validated reduction pathways
Carbon footprint data feeds into CSRD, EU ETS, CII, and Poseidon Principles reporting

Emissions Breakdown

Typical maritime company GHG emissions profile

Scope 1 - Vessel OperationsHFO/VLSFO/MGO combustion, boilers, incinerators, refrigerants
~92%
Scope 1 - Shore OperationsCompany vehicles, office heating, backup generators
~1%
Scope 2 - ElectricityShore offices, warehouse, port facilities
~1%
Scope 3 - Value ChainWell-to-tank, shipbuilding, crew travel, drydocking, purchased services
~6%

Science Based Targets initiative (SBTi)

The Science Based Targets initiative (SBTi) has developed maritime sector guidance requiring companies to set near-term (5–10 year) and long-term (by 2050) emission reduction targets aligned with 1.5°C pathways.

GHG Reporting Requirements

Maritime companies face an expanding landscape of carbon footprint reporting obligations from regulators, investors, and industry frameworks.

GHG Protocol Compliance

Corporate-level Scope 1-3 inventory following GHG Protocol Corporate Standard and Scope 3 Standard. Organizational and operational boundary setting, base year selection, and emission factor management.

IMO & EU Regulatory Alignment

Carbon footprint data directly supports EU ETS compliance (CO2, CH4, N2O), CII rating calculations, IMO DCS reporting, and FuelEU Maritime GHG intensity tracking.

CSRD & ESRS E1 Climate

ESRS E1 (Climate Change) requires detailed GHG emissions disclosure, transition plans, carbon pricing exposure, and Scope 3 value chain reporting with limited assurance.

Investor & Lender Requirements

TCFD/ISSB disclosures, CDP questionnaires, and ESG rating agencies all require robust, verified carbon footprint data from maritime companies.

Our Carbon Footprint Solutions

We provide end-to-end carbon footprint services, from initial emissions inventory through science-based target setting, reduction strategy, and third-party verification support.

Scope 1-3 Emissions Inventory

Complete GHG inventory covering vessel operations, shore facilities, and value chain emissions using GHG Protocol methodology.

  • Fleet fuel consumption analysis
  • Shore-side energy accounting
  • Scope 3 category screening
  • Emission factor selection & management

Carbon Footprint Baseline & Tracking

Establishment of a verified base year and ongoing annual carbon footprint tracking with trend analysis and performance benchmarking.

  • Base year establishment & recalculation policy
  • Annual inventory updates
  • Year-on-year trend analysis
  • Peer & sector benchmarking

Science-Based Target Setting

Support for setting SBTi-validated emission reduction targets aligned with 1.5°C pathways, including near-term and long-term maritime targets.

  • Target boundary & scope definition
  • Reduction pathway modeling
  • SBTi submission support
  • Progress tracking & reporting

Reduction Strategy & Roadmap

Development of actionable decarbonization roadmaps covering operational efficiency, alternative fuels, and fleet renewal strategies.

  • Marginal abatement cost curves
  • Operational efficiency measures
  • Alternative fuel transition planning
  • Fleet renewal & retrofit assessment

Carbon Reporting & Disclosure

Preparation of carbon footprint reports for regulatory submissions (CSRD, CDP), investor communications, and voluntary sustainability reports.

  • CSRD/ESRS E1 climate disclosure
  • CDP questionnaire completion
  • Annual carbon footprint report
  • Stakeholder communication materials

Verification & Assurance Support

Preparation for third-party verification of GHG data, including data quality management, evidence documentation, and verifier liaison.

  • Data quality management system
  • Verification-ready documentation
  • Third-party verifier coordination
  • Continuous improvement recommendations
FAQ

Frequently Asked Questions

Common questions about our Carbon Footprint services and compliance requirements.

International shipping accounts for approximately 2.8% of global greenhouse gas emissions, or roughly 1 billion tonnes of CO2 equivalent annually. Scope 1 emissions (vessel operations) represent about 92% of total shipping emissions, with Scope 3 (well-to-tank, shipbuilding, crew travel) at approximately 6%.

Start Your Carbon Footprint Journey

Accurate carbon footprint measurement is the first step toward meaningful decarbonization. Get expert support for Scope 1–3 emissions accounting, science-based target setting, and reduction strategy development.