未来はグリーンか グレーか ハイブリッドか? 英国における沿岸洪水リスク管理と適応に関する様々な見解
1Marine and Coastal Environment Team, School of Geography & Sustainable Development, University of St Andrews, St Andrews, UK.
Cambridge prisms. Coastal futures
|August 29, 2025
まとめ
沿岸の適応戦略は,洪水リスク管理のための自然に基づく解決策に関する様々な見解を示しています. すべてのグループがこれらの解決策を重視していますが 移住や社会的公平性については意見の相違があり 受け入れに影響を与えています
科学分野:
- 環境科学
- 気候変動への適応
- 海岸管理
背景:
- 気候変動による海面上昇は 洪水や浸食などの沿岸の危険を強めます
- 自然ベースのソリューション (NbS) は,沿岸のリスク削減と生物多様性にとって二重の利益をもたらします.
- NbSが戦略に組み込まれているにもかかわらず,従来の"ハード"エンジニアリングはしばしば実装に優先されます.
研究 の 目的:
- 英国沿岸の洪水リスク管理に関する様々な関係者の見解を探求する.
- ハードエンジニアリングと自然ベースのソリューションの役割と受け入れに関する見解を理解する.
主な方法:
- 異なる見解を特定し分析するためにQ-メソドロジーを利用しました.
- イギリスの沿岸地域の興味のある人や影響を受けたグループと関わりました.
主要な成果:
- 5つの主要視点を特定した. 緑の実践者, 将来の計画移転者, ケースバイケース思考者, 慎重な実践者, 気候変動に関心を持つ者.
- リスクの軽減と副利益のためのNbSの価値は,すべての視点で認識されました.
- インフラを保護する役割は認められたが,ハードエンジニアリングの解決策を優先した見方はなかった.
- 主な意見の相違は,移転戦略の必要性と,NbSが社会的不平等を生み出す可能性に焦点を当てた.
結論:
- NbSの評価については,関係者の間で合意があるが,移転や資本などの実施の詳細については,さらなる調査が必要である.
- これらの視点の普及を決定し,英国沿岸の洪水リスク管理におけるNbSの社会的受け入れを評価するには,さらなる研究が必要である.
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