Bednarz Ewa M, Haywood James M, Visioni Daniele, Butler Amy H, Jones Andy
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, CO, USA.
NOAA Chemical Sciences Laboratory (NOAA CSL), Boulder, CO, USA.
Sci Adv. 2025 May 16;11(20):eadu4038. doi: 10.1126/sciadv.adu4038. Epub 2025 May 14.
Stratospheric ozone plays a crucial role in life and ecosystems on Earth, with a vast amount of research focused on the effects of human activities on ozone. Yet, impacts of tropospheric climate intervention methods like marine cloud brightening (MCB) have not previously been considered to reach the stratosphere. In this study, we demonstrate that MCB can also have a significant impact on both stratospheric and tropospheric ozone, and discuss the processes via which such an influence could occur. Our results demonstrate the inherent coupling between the troposphere and the stratosphere and underscore the need to assess not just the potential surface climate impacts of MCB, or any other climate intervention, but also their holistic interaction with the whole Earth system, including the middle atmosphere.
平流层臭氧对地球上的生命和生态系统起着至关重要的作用，大量研究聚焦于人类活动对臭氧的影响。然而，此前并未考虑过诸如海洋云增亮（MCB）等对流层气候干预方法的影响会波及平流层。在本研究中，我们证明海洋云增亮也会对平流层和对流层臭氧产生重大影响，并讨论了可能产生这种影响的过程。我们的结果证明了对流层和平流层之间存在内在耦合，并强调不仅要评估海洋云增亮或任何其他气候干预对地表气候的潜在影响，还需评估它们与包括中层大气在内的整个地球系统的整体相互作用。
