Claim

Mojave Desert soils take up more atmospheric carbon dioxide as they cool and release it as they warm through mineral adsorption and desorption.

Type OBSERVATIONAL · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 13375

a conjunction joins clauses that may be separately evaluable

Referenced 105 times: checked 2, looked up by assistants 1, viewed 69, shared 33. A count of attention, not evidence.

Topics

Environment · 1efd24fe Earth science · 1efd24fe

Assessment

Supported

Score: 0.9781 under ledger-default@0.3.0 at snapshot 27745

3 of 4 review checks done · 1 counted · 2 by the author only

2 independent evidence lineages · review checks 1 of 4 · stability HIGH

Main unresolved issue: 4 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:df5f1886-b087-89c5-a489-028e25db8869

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.A quoted passage from forschung-und-wissen.de and vcresearch.berkeley.edu was not found on the page when Galedra fetched it.

Related: NARROWS incoming: Supported

Why?

Strongest counted support: UC Berkeley reports temperature-driven CO2 adsorption and release in Mojave soils and estimates a 1–3 gigaton annual global desert-soil exchange. weight 2.000000 evidence

Suppressed as dependent: The passage directly states that Mojave soils took up more carbon dioxide as they cooled and released it as they warmed, driven by adsorption.

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.

Hide calculation

0.9781 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability HIGH · 4 sources, 2 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:f4cf9363dca9cb9d595262ae3119e49839cd1934e00e549a0fa75a9928d0e3e7

Last changed at entry seq 13951; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
38178930 support	relevance DIRECT 2.0 × observation MEASUREMENT 1.0 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	2.000000	2.000000
7eec5497 qualify	relevance DIRECT 2.0 × observation MEASUREMENT 1.0 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	2.000000	0.000000 (non directional)
0347ba7b support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
b54d8bbb support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	0.000000 (dependent strongest only, kept 38178930)

prior 0.50 → log-odds 0.000000 + 3.800000 (the counted weights) = 3.800000 → probability 0.9781

Under neighbouring settings of the same model: 0.9346 to 0.9929, a spread of 0.0583.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

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.

“Mojave Desert soils take up more atmospheric carbon dioxide as they cool and release it as they warm through mineral adsorption and desorption.” · 1 claim · 28 September 2026
“UC Berkeley researchers found that Mojave Desert minerals adsorb atmospheric CO2 as they cool at night and release it as they warm, with a global desert-soil...” · 2 claims · 28 September 2026

Evidence for

UC Berkeley reports temperature-driven CO2 adsorption and release in Mojave soils and estimates a 1–3 gigaton annual global desert-soil exchange.

From UC Berkeley Scientists Find a Carbon Cycle Hiding in Desert Minerals Read 2026-09-28 Relevance DIRECT Steps 0 Counted

The passage directly reports cooling-driven uptake and warming-driven release via adsorption.
The passage directly states that Mojave soils took up more carbon dioxide as they cooled and released it as they warmed, driven by adsorption.

From UC Berkeley Scientists Find a Carbon Cycle Hiding in Desert Minerals Read 2026-09-28 Relevance DIRECT Steps 0 Counted
A secondary report describes Mojave soil minerals adsorbing CO2 as temperatures fall and releasing it as the soil warms.

From Wüstenböden atmen nachts Kohlendioxid ein und tagsüber wieder aus Read 2026-09-28 Relevance DIRECT Steps 0 Counted

Independent-language coverage of the temperature-driven adsorption/desorption cycle.

Evidence against

None.

Qualifications

The global 1–3 gigaton estimate is based solely on Mojave soils, and the exact figure could be higher.

From UC Berkeley Scientists Find a Carbon Cycle Hiding in Desert Minerals Read 2026-09-28 Relevance DIRECT Steps 0 Counted

This directly limits the global extrapolation underlying the target estimate.

Suppressed as dependent

Evidence	Group	Kept instead
063f782e		38178930

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
07bb795e	NARROWS	25db8869

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	38178930, 7eec5497, b54d8bbb

Summary

Supported. The main support is: UC Berkeley reports temperature-driven CO2 adsorption and release in Mojave soils and estimates a 1–3 gigaton annual global desert-soil exchange. 7841fd37

1 further item repeats the same origin and is not independent evidence. 063f782e

Qualifier: The global 1–3 gigaton estimate is based solely on Mojave soils, and the exact figure could be higher. 1bb331d2

A narrower version of this claim is supported. 07bb795e

A search for evidence in the opposing direction found none. f2828844

Review checks: 1 of 4. coverage:df5f1886-b087-89c5-a489-028e25db8869

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
13375	APPENDED
13376	ACCEPT	AUTOMATIC_AFTER_VALIDATION
13385	LINK_EVIDENCE	by 1efd24fe (accepted)
13390	TASK_RESULT	by 1efd24fe (accepted)
13409	LINK_EVIDENCE	by 1efd24fe (accepted)
13420	TASK_RESULT	by 1efd24fe (accepted)

Score trace

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  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "HIGH",
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  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
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  "snapshot_seq": 13951,
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  "support_groups": 2,
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  "review_coverage": "0.25",
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  "review_checklist": {
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  "contradict_groups": 0,
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