2024-07-15 レンセラー工科大学 (RPI)
＜関連情報＞
- https://news.rpi.edu/2024/07/15/loss-oxygen-lakes-and-oceans-major-threat-ecosystems-society-and-planet
- https://www.nature.com/articles/s41559-024-02448-y
水生酸素欠乏は惑星の境界であり、地球システムの安定性の重要な調節因子である Aquatic deoxygenation as a planetary boundary and key regulator of Earth system stability
Kevin C. Rose,Erica M. Ferrer,Stephen R. Carpenter,Sean A. Crowe,Sarah C. Donelan,Véronique C. Garçon,Marilaure Grégoire,Stephen F. Jane,Peter R. Leavitt,Lisa A. Levin,Andreas Oschlies & Denise Breitburg
Nature Ecology & Evolution Published:15 July 2024
DOI:https://doi.org/10.1038/s41559-024-02448-y
Abstract
Planetary boundaries represent thresholds in major Earth system processes that are sensitive to human activity and control global-scale habitability and stability. These processes are interconnected such that movement of one planetary boundary process can alter the likelihood of crossing other boundaries. Here we argue that the observed deoxygenation of the Earth’s freshwater and marine ecosystems represents an additional planetary boundary process that is critical to the integrity of Earth’s ecological and social systems, and both regulates and responds to ongoing changes in other planetary boundary processes. Research on the rapid and ongoing deoxygenation of Earth’s aquatic habitats indicates that relevant, critical oxygen thresholds are being approached at rates comparable to other planetary boundary processes. Concerted global monitoring, research and policy efforts are needed to address the challenges brought on by rapid deoxygenation, and the expansion of the planetary boundaries framework to include deoxygenation as a boundary helps to focus those efforts.
