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EcologyComparisons: Ecology

Olympic Sustainability Historical Model

Archived record of a discontinued Olympic sustainability scoring model; it is not a current ranking or planning calculator.

Published

Calculator archived: The former interactive scoring model is disabled and does not provide current Olympic rankings or footprint estimates.

Archived Olympic sustainability model

Archived historical, non-current snapshot — dated July 10, 2026 (2026-07-10). The stored Games scores, averaged sustainability ratings, fixed thresholds, and CO2e values described below belong to a discontinued model and are not a current Olympic assessment, ranking, or footprint. Consult the relevant organizing committee’s final report and event-specific research for current analysis.

This page is a historical, non-current record of a discontinued calculator. The interactive scoring and event comparison have been disabled. The archived values must not be treated as an official Olympic assessment, current ranking, audited footprint, procurement score, or planning recommendation.

Historical scope

The retired model stored selected Games, three numeric scores, and occasional CO2e values. It averaged ecological, social, and economic scores and assigned labels from fixed thresholds. The records did not share one frozen reporting boundary, edition, evidence map, or uncertainty treatment, and some post-2020 values were provisional. Event footprints with different construction, travel, operations, procurement, and legacy boundaries are not directly comparable.

The only arithmetic retained for historical comparison is this worked example: 3,000,000 t CO2e ÷ 11,000 athletes = 272.727273 t CO2e per athlete. This checks division only. It does not validate either input, normalize event boundaries, or establish a meaningful per-athlete sustainability measure.

Why the calculator is archived

A single average obscured differences in event type, host context, reporting scope, timing, and evidence quality. Presenting those stored values interactively could imply unsupported currency and authority. Reactivation requires a frozen event and study version, sources tied to each claim, comparable system boundaries, documented uncertainty and test cases, and publication review.

Use the relevant organizing committee’s final report and event-specific research for current analysis. No current result or freshness claim is provided here.

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Olympic Sustainability Historical Model updated at

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