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The History of Landfills and Landfill Gas Management in Canada

2025· article· en· W4415122926 on OpenAlexaboutno aff
William F. Ritter

Bibliographic record

VenueCognizance Journal of Multidisciplinary Studies · 2025
Typearticle
Languageen
FieldEnvironmental Science
TopicLandfill Environmental Impact Studies
Canadian institutionsnot available
Fundersnot available
KeywordsMunicipal solid wasteNova scotiaIncinerationLandfill gasWaste collectionSolid waste managementGarbage

Abstract

fetched live from OpenAlex

The purpose of the paper is to discuss the history of solid waste management (SWM) in. Canada based upon a comprehensive literature review. There has never been a history of SWM in Canada published. Solid waste regulation in Canada is different than in the U.S. The provincial governments establish regulations and policy for solid waste management. Today Canada has about 2600 open landfills and 10,000 closed landfills. Newfoundland Labrador and the northern territories still have some open dumps. In 1993, 70 % of the municipalities had recycling programs. Today Nova Scotia is the leading providence in landfill solid waste diversion. Toronto has a long history in SWM. They started garbage collection in 1834, opened their first incinerator in 1890, and started curbside recycling in 1987. Today they operate two anaerobic digesters to process organic MSW and a clean material recover facility.

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)0.002
metaresearch head score (Gemma)0.004
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.173
Threshold uncertainty score0.959

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.004
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0070.024
Science and technology studies0.0060.005
Scholarly communication0.0060.003
Open science0.0010.002
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0060.000

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 head0.013
GPT teacher head0.255
Teacher spread0.242 · 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 designNot applicable
Domainnot available
GenreReview

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
Published2025
Admission routes1
Has abstractyes

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