📊 Group Activity Title: #

Quantifying GHG Emissions from Organizational Operations

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🎯 Learning Objectives: #

By the end of this activity, participants will be able to:

1. Identify relevant GHG sources and apply an appropriate quantification model (Clause 6.2).
2. Calculate GHG emissions in tonnes of CO₂e using activity data and selected emission factors.
3. Document the quantification method aligned with ISO 14064-1 Clause 6 requirements.

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🧾 Scenario for Group Work: #

• This is the organization’s first GHG inventory (no historical base year).
• You are tasked to prepare a base-year inventory and calculate total GHG emissions.
• You are provided:
  • Raw activity data in Excel format (e.g., liters of diesel used, electricity consumption, waste generated, etc.)
  • Reference of EF: Module 5 – Emission Factors & Calculation

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📂 Materials Provided: #

• Excel GHG Data Sheet (use the same format as the previous activity)
• Module 5 GHG Emission Factor reference link
• ISO 14064-1 Clause 6 guidelines (Identification, Selection, Model & Calculation)

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👥 Group Instructions: #

✅ Step 1: Identify GHG Sources & Sinks (Clause 6.1) #

• Based on Excel data, list down relevant GHG sources (e.g., fuel use, electricity, transport).
• Classify each as Direct or Indirect based on its nature.

⚙️ Step 2: Select a Quantification Approach (Clause 6.2.1) #

• Agree on a quantification method (e.g., activity data x emission factor) and document your justification.

📊 Step 3: Choose Emission Factors (Clause 6.2.2) #

• For each activity, select a suitable emission factor from the Module 5 reference.
• Ensure factors are appropriate to regional context and source type.

📐 Step 4: Build a GHG Quantification Model (Clause 6.2.3) #

• Describe your calculation model:
  • E.g., “Liters of diesel × Diesel EF = tCO₂e”
  • Include assumptions, units conversion, and how you addressed uncertainty.

🔢 Step 5: Perform GHG Calculation (Clause 6.3) #

• Calculate total GHG emissions in tonnes of CO₂e.
• Separate by source/category (Scope 1, 2, and 3 if applicable).
• Use 100-year GWP for conversion where needed (e.g., CH₄, N₂O).

📈 Step 6: Present Your Results #

• Create a summary table showing:
  • Source type, activity data, EF used, tCO₂e result
• Present your total GHG emissions (in tCO₂e) and explain your quantification process.

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📌 Deliverables: #

Each group will submit and present:

• Completed GHG Calculation Table
• Explanation of quantification methodology and emission factor selection
• Final GHG result in tonnes of CO₂e
• Short explanation of uncertainty, limitations, and assumptions

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📝 Facilitator Notes: #

• Ensure participants follow Clause 6.1–6.4 precisely.
• Prompt them to explain:
  • Why they chose certain emission factors
  • How they addressed uncertainty
  • How reproducible and acceptable their model is
• Cross-check if all sources from the dataset are addressed.