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Record W4409490502 · doi:10.1016/s2542-5196(25)00077-4

A kilo for a tonne: the unmet need to address underuse in health care in a climate crisis

2025· article· en· W4409490502 on OpenAlexaff
Owen Dan Luo, Myles Sergeant

Bibliographic record

VenueThe Lancet Planetary Health · 2025
Typearticle
Languageen
FieldHealth Professions
TopicHealthcare cost, quality, practices
Canadian institutionsHamilton Health SciencesMcGill University Health Centre
Fundersnot available
KeywordsTonneHealth careBusinessEnvironmental healthPolitical scienceMedicineEconomic growthGeographyEconomics

Abstract

fetched live from OpenAlex

Climate change is the greatest threat to human health in the 21st century and the health-care system is a substantial contributor, being responsible for about 5% of worldwide carbon emissions.1 Every health-care investigation and intervention has a carbon footprint, and evidence exists for the overuse of unnecessary, low-value care in health systems worldwide.2 The sustainable health-care community has therefore leveraged Choosing Wisely concepts of so-called do-not-do lists and social prescribing (eg, nature, exercise, and diet) to address overuse in health care.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.004
metaresearch head score (Gemma)0.019
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.038
Threshold uncertainty score0.126

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0040.019
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.002
Science and technology studies0.0030.004
Scholarly communication0.0040.006
Open science0.0010.005
Research integrity0.0070.008
Insufficient payload (model declined to judge)0.0380.006

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.482
GPT teacher head0.562
Teacher spread0.081 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2025
Admission routes1
Has abstractyes

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