How are scopes 1 2 and 3 defined for corporate emissions tracking

Updated 9/5/2025

Scopes 1, 2, and 3 are classifications used to categorize corporate greenhouse gas (GHG) emissions based on their sources and control, providing a comprehensive framework for emissions tracking.

Why it matters

How to apply

  1. Identify Emission Sources: Conduct a thorough assessment of all operations to identify sources of emissions.
  2. Categorize Emissions: Classify emissions into Scope 1, Scope 2, and Scope 3 based on ownership and control.
    • Scope 1: Direct emissions from owned or controlled sources.
    • Scope 2: Indirect emissions from the consumption of purchased energy.
    • Scope 3: All other indirect emissions not covered in Scope 1 and 2.
  3. Data Collection: Gather data on emissions sources, energy consumption, and relevant activities across all scopes.
  4. Calculate Emissions: Use established methodologies and emission factors to quantify emissions for each scope.
  5. Report Findings: Compile and report emissions data in accordance with relevant standards (e.g., GHG Protocol, CDP).
  6. Set Reduction Targets: Based on the findings, establish realistic and measurable emissions reduction targets.

Metrics to track

Pitfalls

Key takeaway: Accurate tracking of Scopes 1, 2, and 3 emissions is essential for effective corporate sustainability and risk management.