How to Measure and Report Greenhouse Gas (GHG) Emissions in Your Company

With climate change becoming a central concern for regulators, investors, and consumers, businesses are under increasing pressure to track and reduce their greenhouse gas (GHG) emissions. Whether you’re aiming to improve your ESG performance, meet net-zero targets, or comply with reporting standards like the GHG Protocol or ISO 14064, understanding how to measure and report emissions is crucial.

This guide will walk you through the process of measuring and reporting GHG emissions in your organization—with a focus on accuracy, transparency, and sustainability leadership.

📞 Start measuring your carbon footprint today — Book a GHG Consultation.

Why Measuring GHG Emissions Matters

Measuring GHG emissions isn’t just about compliance. It’s about:

•   Understanding your carbon footprint

•   Identifying reduction opportunities

•   Complying with ESG and regulatory frameworks

•   Building trust with customers, investors, and stakeholders

•   Driving long-term cost savings through energy efficiency

Organizations with clear, credible GHG reporting are better positioned to attract ESG-conscious investors, win green tenders, and future-proof their operations.

📞 Need ISO 14064 support in Malaysia? Talk to our ESG consultants.

Step 1: Understand the GHG Emission Scopes

Before you start measuring, you need to understand the three scopes of emissions defined by the GHG Protocol—the world’s most widely used GHG accounting standard.

Scope 1 and 2 are typically required for mandatory reporting, while Scope 3 is increasingly demanded in ESG disclosures.

Step 2: Gather Emissions Data

Start collecting activity data that can be converted into GHG emissions. This includes:

For Scope 1:

•   Fuel consumption logs (diesel, petrol, natural gas)

•   Refrigerant use

•   Onsite combustion systems (boilers, generators)

For Scope 2:

•   Utility bills (electricity, steam, chilled water)

•   Electricity meter readings by site

For Scope 3 (optional but valuable):

•   Business travel (flights, taxis, hotel stays)

•   Employee commuting patterns

•   Purchased goods and services

•   Waste management records

•   Logistics and distribution emissions

Tip: Work with your facilities, procurement, HR, and finance teams to consolidate relevant data.

Step 3: Convert Activity Data to Emissions

Once you’ve collected activity data (e.g., kWh of electricity, liters of fuel), convert it into carbon dioxide equivalents (CO2e) using emissions factors. 

Where to get emissions factors:

•   GHG Protocol Emission Factor Database

•   IPCC Guidelines for National GHG Inventories

•   UK DEFRA Emissions Factors

•   National databases (e.g., Malaysia’s MyCarbon platform)

Formula:

Emissions (tCO2e) = Activity Data × Emissions Factor

Use spreadsheet tools or GHG accounting software to automate this process across multiple locations or business units.

Step 4: Report GHG Emissions

Now that you’ve measured your emissions, it’s time to disclose them in a clear, credible way. Here’s what your GHG emissions report should include:

What to Include:

•   Reporting period (e.g., calendar year 2024)

•   Organizational and operational boundaries

•   Scope 1, Scope 2, and (if applicable) Scope 3 breakdown

•   Methodologies and emissions factors used

•   Base year for tracking progress

•   Emission intensity metrics (e.g., CO2e per revenue or employee)

Reporting Frameworks to Consider:

•   GHG Protocol (Corporate Standard or Product Life Cycle Standard)

•   ISO 14064-1: Greenhouse gases — Organizational reporting

•   GRI Standards (GRI 305) for ESG and sustainability reporting

•   CDP (Carbon Disclosure Project) for investor-facing disclosures

•   TCFD for climate-related financial risk reporting

You can include GHG reports in:

•   ESG or sustainability reports

•   Annual reports

•   Supplier questionnaires

•   Internal dashboards and KPIs

Step 5: Verify and Improve

To build credibility and avoid greenwashing, consider third-party verification of your GHG inventory. This aligns with ISO 14064-3 and increases trust among investors and customers.

Then, use the insights to:

•   Set science-based targets (SBTi)

•   Identify emissions hotspots

•   Plan carbon reduction strategies (e.g., energy efficiency, renewable energy adoption)

•   Offset unavoidable emissions with verified carbon credits from recognized registries (e.g., VCS, Gold Standard)

Tools to Help You Track GHG Emissions

Depending on your company size and complexity, you can use:

•   Manual tracking (Excel/Google Sheets) – ideal for SMEs starting out

•   GHG accounting software (e.g., Normative, Envizi, Sphera)

•   Sustainability platforms integrated with ESG reporting (e.g., EcoVadis, S&P Global, Workiva)

Make sure your system allows you to track trends, compare performance, and support audits.

Who Benefits Most from GHG Reporting

•   Export-oriented manufacturers (palm oil, semiconductors, food processing)

•   Public-listed companies under Bursa Malaysia ESG requirements

•   SMEs supplying to global brands with ESG requirements

•   Sustainability managers, QA leaders, compliance officers

ISO 14064 & GHG Reporting: What You Need to Know

1. What does ISO 14064 compliance mean for Malaysian businesses?
ISO 14064 provides internationally recognized methods for measuring and reporting GHG emissions. For Malaysian companies, it ensures compliance and builds global market trust.

2. Who should measure GHG emissions — and who benefits most?
Any company aiming for ESG reporting, supply chain compliance, or export market access benefits — especially manufacturers and listed entities.

3. When should I start preparing for GHG reporting in Malaysia?
Now. ESG regulations are tightening, and tenders increasingly require proof of carbon reporting. Early preparation reduces risks.

4. Why partner with Nexus TAC as your ISO 14064 consultant in Malaysia?
As an experienced ISO consultant in Malaysia, we provide end-to-end support — from carbon footprint measurement to verified reporting and ESG consulting.

5. How do we help you build an ESG-ready carbon footprint system?
We guide you through data collection, reporting, verification, and reduction strategies — ensuring you meet ISO 14064 and ESG requirements confidently.

Final Thoughts

Measuring and reporting your GHG emissions is no longer a “nice to have”—it’s a strategic business imperative in a carbon-conscious world. Whether you’re aiming for ESG compliance, preparing for sustainability-linked financing, or future-proofing your brand, GHG accounting is your first step toward net-zero.

By following a structured approach—aligned with GHG Protocol or ISO 14064—your company can build transparency, enhance credibility, and lead in climate action.

⚡ Don’t let GHG reporting gaps weaken your ESG disclosures. Secure your ISO 14064 verification with Nexus TAC — Book your consultation now!