1 / 31

Greenhouse Gases & Carbon Footprinting

Greenhouse Gases & Carbon Footprinting. Jerry Hancock Vice President of Environmental and Regulatory Affairs, Flowers Foods. AIB Sustainability Essentials December 1, 2009. Greenhouse Gases & Carbon Footprinting. What is a greenhouse gas? What is carbon footprinting?

bedros
Download Presentation

Greenhouse Gases & Carbon Footprinting

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Greenhouse Gases & Carbon Footprinting Jerry Hancock Vice President of Environmental and Regulatory Affairs, Flowers Foods AIB Sustainability Essentials December 1, 2009

  2. Greenhouse Gases & Carbon Footprinting • What is a greenhouse gas? • What is carbon footprinting? • How are they calculated? • What are the standards?

  3. Greenhouse Gases & Carbon Footprinting • What is a greenhouse gas (GHG)? A gas that traps heat in the atmosphere

  4. Greenhouse Gases & Carbon Footprinting • What greenhouse gases do humans generate? Carbon dioxide CO2 Methane CH4 Nitrous oxide N2O Hydrofluorocarbons HFC Perfluorocarbons PFC Sulfur hexafluoride SF6 Nitrogen trifluoride NF3 Hydrofluorinated ethers HFE

  5. Greenhouse Gases & Carbon Footprinting • What is carbon footprinting? The amount of greenhouse gases emitted into the atmosphere annually by a person, household, building, organization, or company. (Source: EPA) CO2 A carbon footprint is measured in units of carbon dioxide equivalents

  6. Greenhouse Gases & Carbon Footprinting • Types of greenhouse gas emissions SCOPE 1 Direct emissions SCOPE 2 Indirect emissions SCOPE 3 Indirect upstream/downstream emissions

  7. Greenhouse Gases & Carbon Footprinting • SCOPE 1—Direct emissions Stationary combustion Boilers, furnaces, burners, turbines, heaters, incinerators, engines, flares Mobile combustion Cars, trucks, buses, trains, planes, boats, ships, barges Process emissions CO2 from calcination step in cement manufacturing and catalytic cracking in petrochemical processing; PFC emissions from aluminum smelting Fugitive emissions Equipment leaks from joints, seals, packing, gaskets, coal piles, wastewater treatment, pits, cooling towers, gas processing facilities

  8. Greenhouse Gases & Carbon Footprinting • SCOPE 2—Indirect emissions Sourced from the consumption of purchased electricity, heat, steam • SCOPE 3—Indirect upstream/downstream emissions Optional step Other indirect emissions from company activities and outsourced/ contract manufacturing, leases, franchises Expands inventory boundary to identify all relevant GHG emissions

  9. Greenhouse Gases & Carbon Footprinting • How are they calculated? Define methodology Specify boundaries, scope Collect emissions data, calculate footprint

  10. Greenhouse Gases & Carbon Footprinting Define methodology Consistent approach --Develop own methodology --Use recognized standard

  11. Greenhouse Gases & Carbon Footprinting Specify boundaries, scopes Organizational boundaries --Wholly, partially owned subsidiaries Operational boundaries --Direct GHG emissions—Scope 1 --Electricity indirect GHG emissions—Scope 2 --Other indirect GHG emissions—Scope 3

  12. Greenhouse Gases & Carbon Footprinting Collect emission data and calculate footprint --Identify GHG emission sources --Select calculation approach --Collect data; choose emission factors --Apply calculation tools --Roll up data to corporate level

  13. Greenhouse Gases & Carbon Footprinting Carbon Footprint Kansas Baking Co., Inc. • 1 bakery • 4 distribution centers CO2

  14. Greenhouse Gases & Carbon Footprinting • Define methodology Consistent approach Use recognized standard—GHG Protocol Carbon Footprint Kansas Baking Co., Inc. CO2

  15. Greenhouse Gases & Carbon Footprinting • Specify boundaries, scopes Organizational boundaries --Kansas Baking Co. --1 bakery --4 distribution centers Carbon Footprint Kansas Baking Co., Inc. CO2

  16. Greenhouse Gases & Carbon Footprinting • Specify boundaries, scopes Operational boundaries --Direct GHG emissions—Scope 1 --Electricity indirect GHG emissions—Scope 2 Carbon Footprint Kansas Baking Co., Inc. CO2

  17. Greenhouse Gases & Carbon Footprinting • Identify GHG emission sources Bakery --Combustion of fuels (natural gas, propane, fuel oil) --Fleet and employee travel --Refrigerant emissions --Purchase of electricity Distribution Centers --Combustion of fuels (space heat) --Delivery fleet and company vehicles --Purchase of electricity Carbon Footprint Kansas Baking Co., Inc. CO2

  18. Greenhouse Gases & Carbon Footprinting • Select calculation approach --Documented emission factors --Mass balance for refrigerants Carbon Footprint Kansas Baking Co., Inc. CO2

  19. Greenhouse Gases & Carbon Footprinting • Collect data; choose emission factors --Utility bills for electricity and natural gas --Invoices for propane/fuel oil for plant combustion --Refrigerant released records --Fleet fuel purchased, miles driven Carbon Footprint Kansas Baking Co., Inc. CO2

  20. Greenhouse Gases & Carbon Footprinting • Collect data; choose emission factors Utility bills for electricity used and natural gas purchased --Bakery: 12,562,156 kWh, 465,890 therms natural gas --Distribution centers: 56,251 kWh, 34,870 therms natural gas Invoices for propane and fuel oil for plant combustion --Bakery: 3,500 gal propane Refrigerant released records --Bakery: 153 lbs R-404A Carbon Footprint Kansas Baking Co., Inc. CO2

  21. Greenhouse Gases & Carbon Footprinting • Collect data; choose emission factors Fleet fuel purchased or miles driven --Distribution fleet 1,500,000 miles, 215,000 gallons diesel --Route fleet 3,500,000 miles, 500,000 gallons diesel --Company cars 250,000 miles, 12,500 gallons Carbon Footprint Kansas Baking Co., Inc. CO2

  22. Greenhouse Gases & Carbon Footprinting • Collect data; choose emission factors Emission factors --GHG Protocol worksheets • Purchased electricity • Stationary combustion of fossil fuels • Mobile sources --CO2 equivalent factor for refrigerants Carbon Footprint Kansas Baking Co., Inc. CO2

  23. Greenhouse Gases & Carbon Footprinting • Apply calculation tools Carbon Footprint Kansas Baking Co., Inc.

  24. Greenhouse Gases & Carbon Footprinting • Apply calculation tools Carbon Footprint Kansas Baking Co., Inc.

  25. Greenhouse Gases & Carbon Footprinting • Apply calculation tools Carbon Footprint Kansas Baking Co., Inc.

  26. Greenhouse Gases & Carbon Footprinting • Apply calculation tools Carbon Footprint Kansas Baking Co., Inc.

  27. Greenhouse Gases & Carbon Footprinting • Apply calculation tools Refrigerants --Releases of 153 lbs R 404a --Global warming potential of 404a is 3,922 lbs CO2e --CO2e = (153 lb 404a) x (3,922 lbs CO2e/lb 404a) = 600,006 lb CO2e = 272.757 tonnes CO2e Carbon Footprint Kansas Baking Co., Inc. CO2

  28. Greenhouse Gases & Carbon Footprinting • Roll-up data to corporate level Scope 1 Fuel Combustion 2,988.409 tonnes CO2e Fleet Operations 7,371.931 tonnes CO2e Refrigerant Releases 272.757 tonnes CO2e Scope 2 Purchased Electricity 11,281.815 tonnes CO2e Carbon Footprint Kansas Baking Co., Inc. CO2

  29. Greenhouse Gases & Carbon Footprinting Carbon Footprint Kansas Baking Co., Inc. 21,914.912 tonnes CO2e CO2

  30. Greenhouse Gases & Carbon Footprinting • What are the standards? GHG Protocol www.ghgprotocol.org Climate Savers www.epa.gov/climatesavers Regional GHG Initiative www.rggi.org ISO 14064 www.iso.org

  31. Questions

More Related