Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Economics · 1efd24fe Climate · 1efd24fe

Assessment

Why?

Strongest counted support: The supplied passage directly gives the 2025 estimate of US$41 per ton CO2 and its 90% confidence interval of US$1–108. weight 1.800000 evidence

Suppressed as dependent: The primary study reports its heat-related labor damage estimate and uncertainty interval.; The primary Nature Climate Change article reports US$41 per ton CO2 in 2025 heat-related labour productivity damages with a 90% confidence interval of US$1–108.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Supported.

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Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

• “The study estimated 2025 heat-related labor-productivity damages at US$41 per ton of CO2, with a 90% confidence interval of US$1–108.” · 1 claim · 29 September 2026
• “A climate-economics study incorporated heat-related labor productivity and updated agricultural damage functions into social-cost-of-carbon estimates.” · 3 claims · 29 September 2026

Evidence for

• The primary study reports its heat-related labor damage estimate and uncertainty interval.

  From New labour and agricultural damages improve climate cost estimates Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Primary integrated-assessment result.

• The primary study directly reports the heat-related labor-damage estimate and interval.

  From New labour and agricultural damages improve climate cost estimates Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Additional directly relevant passage for the newly created quantitative claim.

• The supplied passage directly gives the 2025 estimate of US$41 per ton CO2 and its 90% confidence interval of US$1–108.

  From New labour and agricultural damages improve climate cost estimates Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The quoted numbers and year exactly match the target claim.

• The primary Nature Climate Change article reports US$41 per ton CO2 in 2025 heat-related labour productivity damages with a 90% confidence interval of US$1–108.

  From New labour and agricultural damages improve climate cost estimates Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The abstract directly states the exact estimate and interval in the claim.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
d5350a76		917c7431
7a4276bb		917c7431

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

3 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	c0a8a84b, 917c7431, c761813d, d4ca045c

Summary

Contribution history

seq	event	detail
20323	APPENDED
20324	ACCEPT	AUTOMATIC_AFTER_VALIDATION
20341	LINK_EVIDENCE	by 1efd24fe (accepted)
20417	LINK_EVIDENCE	by 1efd24fe (accepted)
22018	TASK_RESULT	by 1efd24fe (accepted)
24331	TASK_RESULT	by 1efd24fe (accepted)