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Record W2069675598 · doi:10.1109/mspec.2004.1330804

Seven seas sop up CO/sub 2/ [CO/sub 2/ in the oceans]

2004· article· en· W2069675598 on OpenAlexaff
M. J. Evans, William E. Sweet

Bibliographic record

VenueIEEE Spectrum · 2004
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicOcean Acidification Effects and Responses
Canadian institutionsYork University
Fundersnot available
KeywordsCarbon dioxideCarbonateCalcium carbonateAtmosphere (unit)IonCarbon dioxide in Earth's atmosphereSeawaterCompounds of carbonCarbonate IonEnvironmental scienceCalciumCarbon fibersChemistryEnvironmental chemistryMineralogyOceanographyMeteorologyChemical reactionMaterials scienceGeologyPhysics

Abstract

fetched live from OpenAlex

Oceanographers and atmospheric scientists were pretty sure that the oceans must have taken up most of the missing CO/sub 2/, but it is only with the completion of the latest study that this belief is confirmed by solid empirical evidence. The major findings are, first, that nearly half of the carbon dioxide that humans have pumped into the atmosphere over the last 200 years has been absorbed by the oceans, and, second, that the rising CO/sub 2/ concentrations could start to have empirically filling a link in the general model of where CO/sub 2/ originates and where it ends up, is that between 1800 and 1994, the ocean absorbed 48 percent of total CO/sub 2/ emissions serious adverse effects on some marine life. In the case of the oceans, increasing the CO/sub 2/concentration boosts acidity, which is neutralized when CO/sub 2/reacts with calcium carbonate and water to form ions of HCO/sub 3/ and calcium. And the reverse is true as well, with the ions reacting to form CO/sub 2/, water, and calcium carbonate. In the face of increased acidity from rising CO/sub 2/levels, the ocean tries to maintain its equilibrium by increasing the rate of reaction in the direction of making more ions. But that means consuming more calcium carbonate, which unfortunately for ocean life is the stuff of bone, shell, and coral.

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)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.036
Threshold uncertainty score0.072

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0010.002
Science and technology studies0.0020.002
Scholarly communication0.0020.002
Open science0.0000.002
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0110.003

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 head0.015
GPT teacher head0.237
Teacher spread0.223 · 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 designObservational
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

Citations0
Published2004
Admission routes1
Has abstractyes

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