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Record W2287685616 · doi:10.14288/1.0089005

Canadian energy use and greenhouse gas emissions in the 1980’s and 1990’s : decomposition of changes, extrapolation of trends and comparison to other oecd countries

2009· article· en· W2287685616 on OpenAlexaboutno aff
Deborah Marie Herbert

Bibliographic record

VenuecIRcle (University of British Columbia) · 2009
Typearticle
Languageen
FieldEnvironmental Science
TopicEnvironmental Impact and Sustainability
Canadian institutionsnot available
Fundersnot available
KeywordsExtrapolationGreenhouse gasEnvironmental scienceDecompositionAtmospheric sciencesNatural resource economicsEconomicsMathematicsStatisticsChemistryPhysics

Abstract

fetched live from OpenAlex

This thesis examines energy use in Canada in the early to mid-1980's to mid-1990's to investigate what factors caused energy use and greenhouse gas emissions to rise. Trends from this period in energy use and fuel mix are also projected to the years 2000 and 2010. In addition, Canada is compared to 12 other OECD countries to determine whether differences in climate, geography and industrial structure account for differences in absolute and per capita energy use between Canada and these countries. Changes in activity were the main drivers of the increases in energy use and greenhouse gas emissions in the 1980's and 1990's. This influence was partially offset by declines in energy intensity. Structural changes tended to have a less profound impact. Based on trends from this period, both energy use and greenhouse gas emissions will continue rising. More positively, there already are trends towards less greenhouse gas-intensive fuels in some sectors. Climate, geography and industrial structure do not account for differences in per capita energy use between Canada and other industrialized countries. The one exception is the United States. This implies that, with the exception of the U.S., Canada is relatively less energy efficient than other industrialized countries.

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)0.001
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: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.046
Threshold uncertainty score0.336

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0100.021
Science and technology studies0.0020.000
Scholarly communication0.0020.001
Open science0.0010.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0020.000

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 head0.008
GPT teacher head0.197
Teacher spread0.189 · 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
Published2009
Admission routes1
Has abstractyes

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