Weight of containers and cargo lost at sea
Measurement answer
What this metric measures
Reports the total weight of containers and cargo lost at sea, with separate reporting for hazardous and non-hazardous cargo.
Specification
Metric specification
- Result format
- Structured table
- Unit
- tonnes — source-defined reporting unit
- Reporting basis
- Reporting period
- Aggregation
- Total weight of containers and cargo lost at sea during the reporting period, disaggregated between hazardous and non-hazardous cargo.
- Pillar
- Environmental
- Topic
- Marine pollution and waste from maritime transport
- Controlled domain
- Pollution
- Entity type
- Metric
Reporting boundary
Containers and cargo lost at sea from the organization’s maritime transport operations.
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.
- Adopting DisclosureSource evidence
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Requirement
- Not Specified
- Relationship
- Defines Disclosure
- Mapping outcome
- Direct Evidence
- Source locator
- Additional sector guidance, p. 71, Section 3.2, Table 15, MT.C2.2 | p. 71, Section 3.2, Table 15, MT.C2.2
- Adopting DisclosureMT.C2.2
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Version 1.0, June 2025
- Requirement
- Conditional
- Relationship
- Maps Source Identity
- Mapping outcome
- Published
- Source locator
- p. 71, Section 3.2, Table 15, MT.C2.2
Value structure
Dimensions and units
- Unit
- tonnes — source-defined reporting unit
- Reporting basis
- Reporting period
Unit meaning: Values use tonnes under the disclosed TNFD sector-guidance method, reporting period and boundary.
Table fields and units
- Lost item type
- Cargo hazard classification
- Weight lost at sea, tonnes
Published dimensions
- Material hazard classification
- Lost item type: container or cargo
Calculation method
Formula information
- Status
- Specified
- Formula type
- Sum
Formula
Total weight lost at sea = sum of the weight of containers and cargo lost at sea, reported separately for hazardous and non-hazardous cargo.Apply the source-defined TNFD sector-guidance method within the stated reporting boundary. This is a standalone environmental outcome metric with a specified mass unit, operational boundary and mandatory hazardous/non-hazardous disaggregation. The shortlisted container-and-packaging metrics concern unrelated product, revenue, workforce or compliance constructs and are not equivalent.
Variables
| Symbol | Variable | Definition | Unit |
|---|---|---|---|
w_i | Weight of lost container or cargo item | Weight of an individual container or cargo item lost at sea, classified by hazardous or non-hazardous cargo. | tonnes |
W | Total weight lost at sea | Aggregate weight of containers and cargo lost at sea during the reporting period. | tonnes |
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 30 August 2026
TNFD additional sector guidance collection
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Locator
- Additional sector guidance, p. 71, Section 3.2, Table 15, MT.C2.2 | p. 71, Section 3.2, Table 15, MT.C2.2
Supports: The official TNFD sector guidance supports the identity, boundary and method basis of “Weight of containers and cargo lost at sea”.
Open official source
Use with context
Interpretation boundaries
Method disclosures required
Source-edition basis: TNFD sector guidance, Final English sector guidance collection through August 2026 (17 documents).
- Disclose the basis used to classify cargo as hazardous or non-hazardous.
- Disclose the basis used to determine the weight of containers and cargo lost at sea.
- Disclose whether reported weights include containers, cargo, or both.
Record-specific limitations
- The source specifies a hazardous and non-hazardous split but does not provide a hazard-classification protocol.
- The source does not specify whether weight is measured, estimated, or based on manifest data.
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.