A better understanding of the role of natural aerosols in the atmosphere is essential for assessing anthropogenic radiative forcing and the climate response. Our session explores primary aerosols and those formed from precursor gases emitted by natural sources, e.g. from wildfires, deserts, volcanoes, oceans, and vegetation. The session intends to bring together experts from different fields to assess the state-of-the-science knowledge on natural aerosols and to identify future directions to reduce uncertainty in their emissions and impacts. We encourage submissions that use models across different spatial scales and consider past, present or future perspectives, as well as measurements from remote sensing, field campaigns and laboratory experiments. Questions of particular interest are, but not limited to:
- How can we distinguish between truly natural aerosols and those whose emissions or formation are influenced by anthropogenic activities?
- Where are the missing links in our understanding of the lifecycle of natural aerosols?
- How does the contributions of natural aerosols to atmospheric composition and deposition change over time?
- What are the consequences of changes in natural aerosols, e.g., for photovoltaic power production?
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