安全で公正な地球システムの境界線
Johan Rockström1,2,3, Joyeeta Gupta4,5, Dahe Qin6,7,8
1Potsdam Institute for Climate Impact Research (PIK), Member of the Leibniz Association, Potsdam, Germany. johan.rockstrom@pik-potsdam.de.
Nature
|May 31, 2023
まとめ
人類の福祉と地球システムの安定は 結びついているが,しばしば別々に扱われる. この研究は,安全で公正な地球システム境界 (ESB) を定量化し,そのほとんどはすでに超えられ,地球共通のものを脅かしています.
科学分野:
- 地球システム科学
- 環境科学
- 惑星の健康
背景:
- 地球システムの安定と人間の幸福は 相互に関連していますが 孤立して研究されていることが多いのです
- これらの相互依存性の認識が不足すると,独立した管理方法が生まれます.
- この断絶は 環境の回復力と 人間社会の両方に リスクをもたらします
研究 の 目的:
- 地球システムの重要な構成要素の安全で公正な境界線 (ESB) を定量化する.
- 環境安全と人間の正義の両方の考慮を境界設定に統合する.
- グローバル・コモンズを守るための 定量的な基盤を確立する
主な方法:
- 先進的な地球システムモデリング技術を活用した.
- 論文の評価を徹底した.
- 気候,生物圏,水,栄養素の循環,およびエアロゾールの両方で定量化されたESB.
主要な成果:
- 気候や大気中のエアロゾールの安全性よりも 司法上の考慮が 制約的であることが判明しました
- 世界的に定量化された安全で公正なESBの7つが超えられました.
- 世界の土地の半分以上で 少なくとも2つの地域の安全で公正な ESB が超えられています
結論:
- 現在の地球システムの境界線は 大きく超えられていて 重要なリスクを示しています
- 統合された安全で公正なESBは 地球の回復力と人間の幸福を維持するために不可欠です
- この研究は,現在と将来の世代のためのグローバル・コモンズの管理のための定量的な枠組みを提供します.
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