Common Sources of Scope 1 Emissions

Some major sources that generate Scope 1 emissions include:

1. Stationary Combustion (e.g. boilers, furnaces)

2. Mobile Combustion (e.g. vehicle fleets)

3. Process Emissions (e.g. chemical production, cement manufacturing)

4. Fugitive Emissions (e.g. equipment leaks, refrigerant losses)

Measuring and Reporting Scope 1

Companies calculate their Scope 1 emissions based on site-specific data like fuel consumption, miles traveled, chemical production output, etc. Emission factors are used to convert this data into metric tons of carbon dioxide equivalent (CO2e). Common methodologies for quantifying Scope 1 include:

• The GHG Protocol Corporate Standard
• EPA Center for Corporate Climate Leadership
• ISO 14064 for GHG inventories

Importance of Scope 1 Disclosures

Accurately measuring and reporting Scope 1 emissions demonstrates accountability and transparency. It enables companies to identify hotspots, set targets, and track performance over time. Scope 1 is a core component of comprehensive GHG inventories and reporting to initiatives like CDP.

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