Greenhouse gas (GHG) Emission Calculation 

As climate change becomes one of the most critical global challenges, organisations across all sectors are increasingly expected to measure, manage, and report their greenhouse gas (GHG) emissions. Governments, investors, customers, and regulators now require transparent and credible carbon data to support sustainability commitments and climate strategies.

This is where GHG Emission Calculation and Verification plays a vital role.

GHG calculation and verification provides a structured and scientific approach to quantify an organisation’s carbon footprint, assess climate impact, and demonstrate compliance with international climate and sustainability frameworks.

GHG emission calculation is the process of quantifying greenhouse gases released into the atmosphere as a result of organisational activities. These emissions are typically expressed in carbon dioxide equivalent (CO₂e) and cover gases such as:

• Carbon dioxide (CO₂)
• Methane (CH₄)
• Nitrous oxide (N₂O)
• Other relevant greenhouse gases

GHG calculations usually follow internationally recognised methodologies such as:

• GHG Protocol (Corporate & Product Standards)
• ISO 14064 (Part 1, 2 and 3)
• IPCC Guidelines

Emissions are commonly categorised into:

• Scope 1: Direct emissions (e.g. fuel combustion, company vehicles)
• Scope 2: Indirect energy emissions (e.g. purchased electricity)
• Scope 3: Other indirect emissions (e.g. logistics, raw materials, business travel)

Why GHG Calculation and Verification Matters

GHG calculation and verification is no longer limited to large corporations or regulated sectors. It is increasingly required for:

• Sustainability and ESG reporting
• Carbon disclosure initiatives
• Supply chain sustainability programs
• Regulatory compliance
• Climate commitments and net-zero targets
• Access to green financing and incentives

Accurate carbon data enables organisations to make informed decisions, identify emission hotspots, and develop effective decarbonisation strategies.

At Green Sustainability Resources Sdn. Bhd. (GSR), our approach to GHG services focuses on delivering accurate, transparent, and audit-ready carbon data that supports real sustainability decisions.

1. Standards-Based Methodology

We conduct GHG calculations based on:

• GHG Protocol
• ISO 14064 series
• IPCC guidelines
• Scheme-specific requirements (ISCC, GGL, RED, ESG frameworks)

This ensures international alignment and technical credibility.

2. Practical and Data-Driven Approach

We work closely with clients to:

• Define organisational and operational boundaries
• Identify emission sources
• Collect and validate activity data
• Apply appropriate emission factors

This ensures calculations are based on real operational data, not assumptions.

3. Focus on Verification-Ready Outputs

We prepare GHG inventories that are:

• Transparent and well-documented
• Fully traceable with supporting evidence
• Structured for third-party verification
• Suitable for audits and external reporting

Our objective is to ensure clients are confident in their carbon data, not exposed to compliance risks.

4. End-to-End Support

Our GHG services include:

• Carbon footprint assessment
• Scope 1, 2 and 3 calculations
• Development of GHG inventory reports
• Data quality checks and validation
• Preparation for third-party verification
• Support during verification audits

Clients receive comprehensive technical support from data collection to verified reporting.