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2500年の欧州の気候の変動と人間の感受性
Ulf Büntgen1, Willy Tegel, Kurt Nicolussi
1Swiss Federal Research Institute for Forest, Snow and Landscape Research (WSL), 8903 Birmensdorf, Switzerland. buentgen@wsl.ch
まとめ
樹輪からの古気候の証拠は,中央ヨーロッパが2500年以上にわたって重要な水気気候の変動を経験したことを明らかにします. 現代の温暖化は前例のないものですが,過去の気候変動は社会の繁栄と崩壊に影響を与えました.
科学分野:
- 古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは,古代気候学 (paleoclimatology) とは
- 環境の歴史 環境史
- 気候科学 気候科学
背景:
- 工業化以前の社会の農業生産性,健康,紛争は,気候変動の影響を受けていた.
- 過去の文明に対する環境と人類による影響を区別することは,限られた高解像度の古気候データがあるため,困難です.
研究 の 目的:
- ツリーリングデータを用いて,過去2500年の中央ヨーロッパの夏の降水量と気温の変動を復元する.
- 気候変動に対する過去の社会的反応をよりよく理解するために,高解像度の古気候の証拠を提供すること.
主な方法:
- デンドロクロノロジー (ツリーリング分析) を用いて,過去の気候を再構築する.
- 中央ヨーロッパにおける2500年の期間における降水量と温度変動の分析.
主要な成果:
- 最近の温暖化は,2500年の記録の中で前例のないものです.
- 過去の水気気候変動の規模と持続期間は,時として超えられてきました.
- ローマと中世の繁栄の時期は,暖かく湿った夏と相関していた.
- 紀元約250年から600年の間に気候の変動が増加し,西ローマ帝国の衰退と移住期と一致した.
結論:
- 高解像度の古気候データは,気候と過去の文明の複雑な相互作用を理解するために不可欠です.
- 歴史的な気候の変動は,現在の気候変動と潜在的な社会的影響の文脈を提供します.
- この研究は,気候変動の緩和に関する現代の政策決定に情報を与えることができます.
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