ナイジェリア大学図書館における炭素排出：6地政学ゾーン間の比較分析
Carbon Emissions in Nigerian University Libraries: A Comparative Analysis across the Six Geopolitical Zones (原題)
K. Dada, R. O. Quadir
🤖 gxceed AI 要約
日本語
ナイジェリアの連邦・州立大学図書館24館を対象に、GHGプロトコルのScope1〜3に沿ってエネルギー使用と排出源を調査した研究。ディーゼル発電がScope1排出の42〜68%を占め、照明の79%、空調の65%が高エネルギー消費型であった。ゾーン間差は大きいが標本が小さく示唆的であり、予算制約とエネルギー政策の欠如が脱炭素の主要障壁と報告されている。
English
A mixed-methods survey of 24 Nigerian federal and state university libraries classifying emissions under GHG Protocol Scopes 1-3. Diesel generators supplied 42-68% of Scope 1 emissions, while 79% of libraries retained fluorescent/incandescent lighting and 65% had older air-conditioning units. Budget constraints and absent energy policy were the top perceived decarbonisation barriers; inter-zonal differences are indicative only given small per-zone samples.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
ナイジェリアの公的セクターにおけるScope分類の実践例として、SSBJや有報でのScope3算定を進める日本企業にとって、新興国拠点の組織境界設定やデータ収集の難しさを理解する参考になる。ただし日本市場への直接的な規制・投資示唆は乏しい。
In the global GX context
Adds a rare Global-South, public-institution case to Scope 1-3 accounting literature, illustrating operational-control boundary setting and data constraints in contexts with unreliable grid power — relevant to ISSB/CSRD Scope 3 and location-based Scope 2 debates beyond OECD markets.
👥 読者別の含意
🔬研究者:Provides a replicable GHG Protocol inventory template for public-sector buildings in low-grid-reliability settings, though with limited statistical power.
🏢実務担当者:Useful mainly for multinationals operating emerging-market campuses seeking analogues for Scope 1 diesel and Scope 2 grid-emission estimation.
🏛政策担当者:Illustrates how absent institutional energy policy and budget constraints block decarbonisation in public universities, supporting NDC-aligned efficiency standards.
📄 Abstract（原文）
Background: University libraries are among the most energy-intensive spaces within Nigerian academic campuses, operating extended daily hours and housing power-demanding equipment including server rooms, lighting arrays, reprographic facilities, and climate-control systems. Despite their substantial contribution to institutional operations, the environmental footprint of these buildings — expressed through institutional greenhouse gas (GHG) emissions — remains poorly quantified across Nigeria’s six geopolitical zones. This study investigates carbon emissions in federal and state university libraries across Nigeria by examining energy-use patterns, emission sources, and the structural barriers hindering decarbonisation in these regions. Methods: Employing a concurrent (convergent) mixed-methods design, this study surveyed 24 university libraries — 12 federal and 12 state institutions, four purposively selected from each of Nigeria’s six geopolitical zones — between January and June 2025. Quantitative energy-inventory and Likert-scale barrier data and qualitative open-ended responses were collected concurrently and integrated at the interpretation stage. Data were collected through a self-developed energy-inventory questionnaire and structured facility checklists administered to a designated primary respondent (the University Librarian or deputy) at each library, supplemented by input from unit heads and maintenance officers where relevant. Emission sources were classified according to the GHG Protocol Corporate Standard across Scopes 1, 2, and 3, applying an operational-control approach to define the library’s organisational boundary. Results: Diesel-powered generators constituted the largest source of Scope 1 emissions in the sampled libraries, accounting for an estimated 42-68% of direct emissions, reflecting the combined effect of constant generator use and unreliable grid electricity supply. Fluorescent and incandescent lighting remained predominant in 79% of surveyed libraries, and air-conditioning units in 65% of facilities were older, higher-energy-intensity models. Descriptively large inter-zonal differences were observed — South-West zone libraries showed comparatively higher adoption of energy-saving technologies and on-site solar generation, whereas North-East zone libraries reported the most constrained infrastructure — although, given the small per-zone sample (n = 4), these differences should be interpreted as indicative rather than confirmatory. Institutional and financial budgetary constraints were the most highly rated perceived barrier to decarbonisation, followed by the absence of institutional energy policy and inadequate staff awareness. Conclusions: The findings point to the value of a coordinated national framework for integrating energy-efficiency standards into university library management, active stakeholder participation, and phased adoption of renewable energy technologies to reduce the carbon footprint of academic libraries in Nigeria, in line with the country’s Nationally Determined Contributions and Sustainable Development Goal 13. Because the sample was purposively — not randomly — selected, these findings should be read as an in-depth, geographically diverse case comparison rather than as statistically generalisable to all Nigerian university libraries.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://repqj.com/index.php/repqj/article/download/4696/3947first seen 2026-10-24 05:23:04 · last seen 2026-11-06 05:16:39
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