1. The Basics of Greenhouse Gas Emissions Inventories Mary Sotos World Resources Institute VEPGA Annual Meeting April 23, 2010

2. Why GHG Inventories? - Climate impact - Demonstrate leadership - Gain expertise for policy-making - Prepare for the future

3. Why WRI? - Internationally-accepted standards - Mission is to provide standards, tools, resources - Partnerships with other programs - New Public Sector Protocol

4. Definition Quantified amount of gases released as part of your operations as an organization for a specific time period –Six Kyoto gases: CO2, CH4, N2O, PFC, HFC, SF6 –Direct and Indirect Largely extension of energy use –Define your entity –Categorize emissions

5. Collect Data Calculate emissions Develop Assign resources Design GHG inventory Plan Set Target Reduce Emissions Manage Report Results

6. Organizational Inventories Company/ Agency/Department Geographic Inventories Nation/ State/County/City -Top-Down - Broad policies - Aligns with point-source regulation - Bottom-up - Apply “consolidation approach” - Indirect emissions

7. Financial Control - Balance sheet? - Set financial policies? Operational Control - Operating license? - Set operating policies? Organizational Boundaries

8. Categorize emissions DIRECT –Scope 1: Fuel combustion, process emissions, fugitive emissions (HVAC) INDIRECT –Scope 2: Purchased electricity, heat/steam/cooling –Scope 3: All other indirect emissions upstream/ downstream

10. Data Sources Scope 1: Fuel records, purchase invoices, vehicle mileage Scope 2: Utility bills Scope 3: Employee commuting & business travel miles Industry association information Procurement

11. User supplied dataGHG emissions (tonnes) Sourc e IDSector Fuel type (e.g., solid fossil)Fuel Amou nt of fuel Units (e.g., kg or kWh) Heating value basisCO 2 CH 4 N2ON2O All GHGs (tonnes CO 2 e) -Cross-Sector and Sector-Specific -Emission factors by country or region (or user-supplied) - Free to download WRI’s Calculation Tools

12. EPA Climate Leaders Guidance CCAR Reporting Protocol WBCSD/WRI GHG Protocol The Climate Registry Protocol Public Sector Standard ISO 14064 Standards Other Programs

13. Collect Data Calculate emissions Develop Assign resources Design GHG inventory Plan Set Target Reduce Emissions Manage Report Results

14. Resources and Contacts Corporate Standard and Public Sector Protocol http://www.ghgprotocol.org/psp Calculation Tools http://www.ghgprotocol.org/calculation-tools/all- toolshttp://www.ghgprotocol.org/calculation-tools/all- tools Mary Sotos, msotos@wri.orgmsotos@wri.org

15. What Gets Measured Gets Managed