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MetricProduct life-cycle greenhouse gas accounting

Product GHG inventory change and reduction performance

Measurement answer

What this metric measures

Reports comparable change in product inventory results from a valid base inventory and tracks reductions against declared targets.

Specification

Metric specification

Result format
Structured table
Unit
Structured table — see field-level units
Reporting basis
Reporting period and product-inventory reference period
Aggregation
Aggregate only compatible, non-overlapping observations for the same product, unit of analysis, boundary, stage, gas, period and method.
Pillar
Environmental
Topic
Product life-cycle greenhouse gas accounting
Controlled domain
Products and life-cycle assessment
Entity type
Metric

Reporting boundary

Current and base product inventories with compatible product, unit of analysis, boundary, methodology and recalculation policy.

Verified source occurrences

Framework coverage

This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.

  • Measurement Authority

    GHG Protocol

    Source evidence
    Publisher
    GHG Protocol
    Edition
    September 2011 publication
    Requirement
    Not Specified
    Relationship
    Defines Measurement
    Mapping outcome
    Direct Evidence
    Source locator
    PDF page 114, Step 6: Update the inventory report | page 112, section 14.3.1 Step 6 | GHG Protocol Product Life Cycle Accounting and Reporting Standard, September 2011, Table 3.1, p. 19. | GHG Protocol Product Life Cycle Accounting and Reporting Standard, September 2011, chapter 13, Setting Reduction Targets and Tracking Inventory Changes. | page 105, Chapter 13 Reporting requirements, Setting reduction targets and tracking inventory changes | Page 19, Table 3.1, Chapter 13, Setting Reduction Targets and Tracking Inventory Changes | page 105, Chapter 13 Reporting requirements, Setting reduction targets and tracking inventory changes | p. 108, section 13.3.4, second paragraph and third bullet
    Open official framework source
  • Measurement Authority

    GHG Protocol

    3873563171a1e58d29cb
    Publisher
    GHG Protocol
    Edition
    September 2011 publication
    Requirement
    Not Specified
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    PDF page 114, Step 6: Update the inventory report
    Open official framework source
  • Measurement Authority

    GHG Protocol

    498d69094d6ea6789808
    Publisher
    GHG Protocol
    Edition
    September 2011 publication
    Requirement
    Not Specified
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    p. 108, section 13.3.4, second paragraph and third bullet
    Open official framework source
  • Measurement Authority

    GHG Protocol

    844a41cafadac7449b53
    Publisher
    GHG Protocol
    Edition
    September 2011 publication
    Requirement
    Not Specified
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    page 105, Chapter 13 Reporting requirements, Setting reduction targets and tracking inventory changes
    Open official framework source
  • Measurement Authority

    GHG Protocol

    906daa1da14b0ec0cfaa
    Publisher
    GHG Protocol
    Edition
    September 2011 publication
    Requirement
    Not Specified
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    Page 19, Table 3.1, Chapter 13, Setting Reduction Targets and Tracking Inventory Changes | page 105, Chapter 13 Reporting requirements, Setting reduction targets and tracking inventory changes
    Open official framework source
  • Measurement Authority

    GHG Protocol

    aba785b5c33b62902be0
    Publisher
    GHG Protocol
    Edition
    September 2011 publication
    Requirement
    Not Specified
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    Page 19, Table 3.1, Chapter 13, Setting Reduction Targets and Tracking Inventory Changes | GHG Protocol Product Life Cycle Accounting and Reporting Standard, September 2011, Table 3.1, p. 19. | GHG Protocol Product Life Cycle Accounting and Reporting Standard, September 2011, chapter 13, Setting Reduction Targets and Tracking Inventory Changes.
    Open official framework source
  • Measurement Authority

    GHG Protocol

    b2ac1904603e8ed6efa0
    Publisher
    GHG Protocol
    Edition
    September 2011 publication
    Requirement
    Not Specified
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    PDF page 114, Step 6: Update the inventory report
    Open official framework source
  • Measurement Authority

    GHG Protocol

    cd6a593d9cc768b4102e
    Publisher
    GHG Protocol
    Edition
    September 2011 publication
    Requirement
    Not Specified
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    page 112, section 14.3.1 Step 6
    Open official framework source

Value structure

Dimensions and units

Unit
Structured table — see field-level units
Reporting basis
Reporting period and product-inventory reference period

Unit meaning: Each field uses its source-defined unit and retains the applicable product, unit of analysis, life-cycle stage, gas, period and method.

Table fields and units

  • Product
  • Base result
  • Current result
  • Change
  • Unit
  • Target
  • Recalculation and method

Published dimensions

  • Current or base inventory
  • Reduction target
  • Life-cycle stage
  • Change driver
  • Recalculation status

Disclosure method

Formula information

Status
Not applicable
Formula type
Structured Disclosure

Disclosure form

No single formula

Report the source-defined result with its stated fields and method disclosures. Source occurrences are consolidated into product-ghg-inventory-change-and-reduction-performance while preserving product, unit-of-analysis, life-cycle-stage, gas, method and boundary distinctions.

Verified sources

Evidence and status sources

Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.

Measurement evidence

  • Measurement evidenceChecked 28 August 2026

    Product Life Cycle Accounting and Reporting Standard

    Publisher
    GHG Protocol
    Edition
    September 2011 publication
    Locator
    PDF page 114, Step 6: Update the inventory report | page 112, section 14.3.1 Step 6 | GHG Protocol Product Life Cycle Accounting and Reporting Standard, September 2011, Table 3.1, p. 19. | GHG Protocol Product Life Cycle Accounting and Reporting Standard, September 2011, chapter 13, Setting Reduction Targets and Tracking Inventory Changes. | page 105, Chapter 13 Reporting requirements, Setting reduction targets and tracking inventory changes | Page 19, Table 3.1, Chapter 13, Setting Reduction Targets and Tracking Inventory Changes | page 105, Chapter 13 Reporting requirements, Setting reduction targets and tracking inventory changes | p. 108, section 13.3.4, second paragraph and third bullet

    Supports: The official GHG Protocol Product Standard source supports the identity, boundary and method basis of “Product GHG inventory change and reduction performance”.

    Open official source

Use with context

Interpretation boundaries

Method disclosures required

Source-edition basis: Product Life Cycle Accounting and Reporting Standard, September 2011 publication.

  • Product and unit of analysis
  • Cradle-to-grave or justified cradle-to-gate boundary
  • Reporting period and reference flow
  • Included life-cycle stages and attributable processes
  • Data sources, allocation, data quality and uncertainty
  • Excluded processes and limitations

Record-specific limitations

  • Combine only observations with compatible products, units of analysis, life-cycle boundaries, periods, gases and methods.
  • Physical inventory results remain separate from offsets, avoided emissions and comparative claims.

Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.

Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.