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CDP Climate Change 2022 Reporting Guidance

(C7.1a) Break down your total gross global Scope 1 emissions by greenhouse gas type and provide the source of each used global warming potential (GWP).

Question dependencies

This question only appears if you select “Yes” in response to C7.1.

Change from last year

Minor change

Rationale

For many sectors and business activities, greenhouse gases other than carbon dioxide are significant and relevant. Since these gases are often only reported in CO2-equivalents (CO2e), their contribution to overall emissions is sometimes masked. CDP therefore requests companies to break down their gross Scope 1 emissions by GHG type.

Response options

Please complete the following table. You are able to add rows by using the “Add Row” button at the bottom of the table.

Greenhouse gas Scope 1 emissions (metric tons in CO2e) GWP Reference

Select from:

  • CO2
  • CH4
  • N2O
  • HFCs
  • PFCs
  • SF6
  • NF3
  • Other, please specify

Numerical field [enter a range of 0-999,999,999,999 using a maximum of 3 decimal places and no commas]

Select from:

  • IPCC Sixth Assessment Report (AR6 – 100 year)
  • IPCC Fifth Assessment Report (AR5 – 100 year)
  • IPCC Fourth Assessment Report (AR4 - 100 year)
  • IPCC Third Assessment Report (TAR - 100 year)
  • IPCC Second Assessment Report (SAR - 100 year)
  • IPCC Fourth Assessment Report (AR4 - 50 year)
  • IPCC Third Assessment Report (TAR - 50 year)
  • IPCC Second Assessment Report (SAR - 50 year)
  • IPCC Sixth Assessment Report (AR6 – 20 year)
  • IPCC Fifth Assessment Report (AR5 – 20 year)
  • IPCC Fourth Assessment Report (AR4 - 20 year)
  • IPCC Third Assessment Report (TAR - 20 year)
  • IPCC Second Assessment Report (SAR - 20 year)
  • Other, please specify

[Add Row]

Requested content

General

  • Please report your organization’s emissions of the Kyoto greenhouse gases, which are:

- Carbon dioxide (CO2);
- Methane (CH4);
- Nitrous oxide (N2O);
- Hydrofluorocarbon family of gases (HFCs);
- Perfluorocarbon family of gases (PFCs);
- Sulfur hexafluoride (SF6).

  • Nitrogen trifluoride (NF3) has been included in the basket of mandated GHGs as it is now considered a potent contributor to climate change and is therefore mandated to be included in national inventories under the United Nations Framework Convention on Climate Change (UNFCCC). Similarly, following an amendment issued by the Greenhouse Gas Protocol on May 2013, NF3 should also be included in GHG inventories under the Corporate Standard and the Corporate Value Chain (Scope 3) Standard.
  • The total value for emissions reported in column 2, Scope 1 emissions (metric tons of CO2e), should equal the value for gross global Scope 1 emissions reported in C6.1.
  • If using global warming potentials from the IPCC Sixth Assessment Report (AR6 – 100 year or AR6 – 20 year) to calculate your Scope 1 emissions CO2e from CH4, you should first calculate the CO2e emissions from fossil CH4 and non-fossil CH4 separately using the relevant GWP, then sum these figures to provide in column 2 the total Scope 1 CO2e emissions from both fossil and non-fossil CH4.

Greenhouse gas (column 1)

  • You can add rows for multiple greenhouse gas types and we request that you also add a row to report CO2.

Scope 1 emissions (metric tons of CO2e) (column 2)

  • Report your organization’s emissions of the greenhouse gas selected in column 1, in CO2-equivalents (CO2e)

GWP Reference (column 3)

  • Identify the global warming potential your organization has applied to the selected greenhouse gas in order to standardize it to a carbon dioxide equivalent (CO2e). Your gross Scope 1 emissions are reported in carbon dioxide equivalents in C6.1. If you have used a calculation tool and do not know which GWPs have been applied to your data, consult the tool documentation or reference sources.
  • If you select “Other, please specify”, provide a label for the GWP Reference.

Explanation of terms

  • Global warming potential (GWP): The Intergovernmental Panel on Climate Change (IPCC)’s Sixth Assessment Report (AR6) defines the Global Warming Potential (GWP) as “an index measuring the radiative forcing following an emission of a unit mass of a given substance, accumulated over a chosen time horizon, relative to that of the reference substance, carbon dioxide (CO2). The GWP thus represents the combined effect of the differing times these substances remain in the atmosphere and their effectiveness in causing radiative forcing.” By using GWPs, GHG emissions from multiple gases can be standardized to a carbon dioxide equivalent (CO2e).

Additional information

  • Changes in Global Warming Potentials (GWPs): Estimates of GWPs have changed over time as scientific understanding has developed. GWP factors are reassessed every few years in the IPCC Assessment Reports and accordingly, CDP recommends that companies use the latest GWPs given in the IPCC’s Sixth Assessment Report (AR6). This approach is aligned with the GHG Protocol Corporate and Accounting Reporting Standard, which states that the company “shall use 100-year GWP values from the IPCC and should use GWP values from the most recent Assessment Report, but may choose to use other IPCC Assessment Reports.”