Carbon Accounting Guide
What is the GHG Protocol?
Summary
The Greenhouse Gas (GHG) Protocol is the world’s most widely used framework for measuring and managing greenhouse gas (GHG) emissions. Developed through a multi-stakeholder process, it provides comprehensive standards, tools, and guidance to help organisations understand, quantify, and reduce their carbon footprint. Whether you're a small business or a multinational corporation, the GHG Protocol is the foundation for credible and consistent carbon accounting.
A Brief History of the GHG Protocol
The GHG Protocol was launched in 1998 as a joint initiative between the World Resources Institute (WRI) and the World Business Council for Sustainable Development (WBCSD). Its mission is to create a universal standard for GHG accounting and reporting. Over time, it has become the basis for many international climate initiatives, including the Science-Based Targets initiative (SBTi) and CDP (formerly Carbon Disclosure Project).
Why is the GHG Protocol Important?
The GHG Protocol provides a globally recognised standard for:
- Measuring emissions: Offering consistent methods to quantify GHG emissions across all sectors.
- Reporting emissions: Providing transparency and credibility in climate reporting.
- Reducing emissions: Enabling organisations to identify reduction opportunities and track progress.
By standardising how emissions are measured and reported, the GHG Protocol ensures comparability, accuracy, and accountability across industries.
Key Components of the GHG Protocol
1. Corporate Standard
The Corporate Standard outlines how organisations should measure and report their GHG emissions. It introduces the three emission scopes:
- Scope 1: Direct emissions from owned or controlled sources (e.g., fuel combustion, process emissions).
- Scope 2: Indirect emissions from purchased electricity, heat, or steam.
- Scope 3: All other indirect emissions across the value chain, including purchased goods and services, transportation, and waste.
The Corporate Standard is the foundation for corporate emissions reporting and is used by organisations globally to manage their carbon footprints.
2. Corporate Value Chain (Scope 3) Standard
This standard provides guidance on measuring and reporting Scope 3 emissions, which often account for the majority of an organisation's carbon footprint. It breaks Scope 3 emissions into 15 categories across upstream and downstream activities, helping organisations understand their value chain impact comprehensively.
3. Project Protocol
The Project Protocol focuses on GHG reduction initiatives, such as renewable energy projects or energy efficiency upgrades. It provides a standardised approach for quantifying the emissions avoided or reduced by these projects.
4. Product Life Cycle Standard
This standard helps organisations measure the GHG emissions associated with a product throughout its life cycle, from raw material extraction to disposal. It is particularly useful for industries focused on sustainable product design and innovation.
5. Standards for Specific Sectors
The GHG Protocol has developed additional guidance tailored to specific industries, such as agriculture, transport, and manufacturing. These sector-specific standards provide more precise methodologies to address unique challenges.
Who Uses the GHG Protocol?
The GHG Protocol is used by a wide range of stakeholders, including:
- Corporations: To measure, report, and reduce their emissions.
- Governments: As the basis for national GHG inventories and climate policies.
- Nonprofits and NGOs: To support advocacy and research on climate action.
- Investors: To assess the environmental performance of companies.
- Sustainability Standards: Frameworks like the Science-Based Targets initiative (SBTi), CDP, and ISO standards rely heavily on the GHG Protocol.
Benefits of Using the GHG Protocol
1. Standardisation
It ensures emissions are measured and reported in a consistent, globally accepted way.
2. Credibility
Following the GHG Protocol provides stakeholders with confidence in the accuracy and reliability of your emissions data.
3. Actionable Insights
By categorising emissions into scopes, the GHG Protocol helps organisations pinpoint where to focus their reduction efforts.
4. Alignment with Global Goals
The GHG Protocol supports alignment with initiatives like the Paris Agreement, ensuring organisations contribute meaningfully to climate targets.
How to Get Started with the GHG Protocol
- Understand Your Emissions: Familiarise yourself with the three scopes of emissions and identify the activities relevant to your organisation.
- Collect Activity Data: Gather data on energy use, transportation, procurement, and other sources of emissions.
- Apply Emissions Factors: Use emissions factors from reputable sources to calculate your carbon footprint.
- Set Reduction Targets: Use the GHG Protocol’s guidance to set meaningful reduction goals, such as science-based targets.
- Report Transparently: Share your results with stakeholders to demonstrate accountability and progress.
Conclusion
The GHG Protocol is the gold standard for measuring and managing GHG emissions. By providing robust methodologies and clear guidance, it empowers organisations to take meaningful climate action. Whether you're starting your carbon accounting journey or aiming to set ambitious reduction targets, the GHG Protocol is your essential guide to building a sustainable future.