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: River alkalinity records indicated approximately 90% realization of the ideal lime carbon-removal potential, with a decadal lag. weight 2.000000 evidence

Suppressed as dependent: The Nature abstract reports approximately 90% realization of an approximately 0.44 GtCO2 ideal-removal potential, with a decadal-scale lag.; The primary Nature article directly reports approximately 90% realization of the 0.44 GtCO2 ideal potential since 1900 at catchment scale, with a decadal-scale lag from soil cation exchange and solute transport.

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.

• “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
• “For agricultural lime added since 1900 in the Mississippi River Basin, approximately 90% of its ideal CO2-removal potential—about 0.44 GtCO2—was estimated to...” · 1 claim · 29 September 2026
• “Century-scale river-alkalinity records for the Mississippi River Basin indicate that approximately 90% of the ideal CO2-removal potential of agricultural...” · 1 claim · 29 September 2026

Evidence for

• The Nature abstract reports approximately 90% realization of an approximately 0.44 GtCO2 ideal-removal potential, with a decadal-scale lag.

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

• Georgia Tech reporting corroborates the long-term Mississippi Basin liming removal result and the decadal lag, but does not independently restate the exact 90% or 0.44 GtCO2 estimates.

  From Researchers Confirm Common Soil Treatment Can Improve Farm Crop Yields and Remove Carbon Read 2026-09-29 Relevance MODERATE Steps 1 Counted

  Institutional secondary coverage of the same Nature study; supports the direction and timescale, not the exact quantitative estimate.

• The packet directly states approximately 90% realization of about 0.44 GtCO2 potential at catchment scale with a decadal lag.

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

  The quoted passage directly states the claim's percentage, quantity, scale, and lag.

• The primary Nature article directly reports approximately 90% realization of the 0.44 GtCO2 ideal potential since 1900 at catchment scale, with a decadal-scale lag from soil cation exchange and solute transport.

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

  The source exactly supports the period, magnitude, realization percentage, spatial scale, and lag.

• River alkalinity records indicated approximately 90% realization of the ideal lime carbon-removal potential, with a decadal lag.

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

  The primary abstract reports the approximate percentage, potential, and lag.

Evidence against

None.

Qualifications

• The counted passage gives quantitative and temporal details but does not name the Mississippi River Basin in the quoted text.

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

  The geography is a material scope qualifier for the claim; it appears in the source title/context but not in the counted excerpt.

Suppressed as dependent

Evidence	Group	Kept instead
16a5f7a7		13233519
26adb813		13233519

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

From	Relationship	To
fa5587fa	NARROWS	31d75e61

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	13233519, ded5c3d6, 6ad318a7, 113ff804, 0c831f56

Summary

Contribution history

seq	event	detail
19522	APPENDED
19523	ACCEPT	AUTOMATIC_AFTER_VALIDATION
19528	LINK_EVIDENCE	by 1efd24fe (accepted)
19564	LINK_EVIDENCE	by 1efd24fe (accepted)
21286	TASK_RESULT	by 1efd24fe (accepted)
22561	TASK_RESULT	by 1efd24fe (accepted)
24314	TASK_RESULT	by 1efd24fe (accepted)
25171	LINK_EVIDENCE	by 1efd24fe (accepted)