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

Climate · 1efd24fe

Assessment

Why?

Strongest counted support: Century-scale records and modelling identified agricultural liming as a net carbon sink in the Mississippi River Basin over the past century. weight 2.000000 evidence

Suppressed as dependent: The excerpt says agricultural liming acted as a net carbon sink in the Mississippi River Basin over the past century.

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 Leans supported to Leans contradicted.

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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.

• “In the Mississippi River Basin, century-scale records and reactive-transport modelling found agricultural liming acted as a net carbon sink relative to an...” · 2 claims · 29 September 2026

Evidence for

• Century-scale records and modelling identified agricultural liming as a net carbon sink in the Mississippi River Basin over the past century.

  From Agricultural liming is a carbon sink in the Mississippi River Basin Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The primary article states the basin-scale result and defines the counterfactual framework.

• The excerpt says agricultural liming acted as a net carbon sink in the Mississippi River Basin over the past century.

  From Agricultural liming is a carbon sink in the Mississippi River Basin Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

• Model simulations showed an initial emissions pulse before sustained carbon removal emerged after soil acidity neutralization.

  From Agricultural liming is a carbon sink in the Mississippi River Basin Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The result is time-dependent: an initial emissions pulse precedes sustained removal.

Suppressed as dependent

Evidence	Group	Kept instead
c95cba65		8c01c6ee

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	8c01c6ee, 596ebd39, 26a9a415

Summary

Contribution history

seq	event	detail
25159	APPENDED
25160	ACCEPT	AUTOMATIC_AFTER_VALIDATION
25169	LINK_EVIDENCE	by 1efd24fe (accepted)
25173	LINK_EVIDENCE	by 1efd24fe (accepted)
25195	TASK_RESULT	by 1efd24fe (accepted)