Ilmakehän pienhiukkasten muodostumisen merkitys ilmastolle ja ilmanlaadulle

Authors

• Anna Chydenius Helsingin yliopisto
• Runlong Cai
• Tom Kokkonen
• Anna Lintunen
• Veli-Matti Kerminen

DOI: https://doi.org/10.57048/aasf.148035

Keywords:

ilmakehätiede, ilmakehätutkimus

Abstract

Atmospheric CO₂ concentrations are increasing. However, the total effect of ecosystems on climate is more complex than just the carbon balance. Ecosystems have a key role in aerosol formation in the atmosphere, which significantly contributes to the radiative balance. Without aerosols, there are no clouds or rain, and aerosols reflect part of the incoming solar radiation back to space, cooling the atmosphere. We established the SMEAR stations 25 years ago, to provide open comprehensive data. We would need similar comprehensive observations from different ecosystems globally, both for properly understanding the full climate forcing and for solving the global environmental challenges.