Aerosol-Precipitation Interactions Meeting – Another Example Of The Breadth Of Human And Natural Climate Forcings

Thanks to Meinrat O. Andreae for alerting us to yet another meeting at the EGU meeting in April which further documents the diversity of first order climate forcings. The meeting is at the EGU
General Assembly in Vienna, 19 – 24 April 2009 is

AS1.15  Aerosol-Precipitation Interactions
Conveners:           M. O. “Andi” Andreae, Ulrike Lohmann, Danny Rosenfeld

“This session will explore recent progress in our understanding of the interactions between atmospheric aerosols and precipitation and their implications for the Earth’s climate. We encourage contributions on the role of aerosols in the formation and evolution of water and ice clouds, on the impact of aerosols on cloud microphysical properties, and especially on the processes that lead to the formation of precipitation. Presentations that address the impact of clouds, precipitation and hydrological processes on the sources and burdens of atmospheric aerosols are also welcome. The session further encourages presentations on the implications of aerosol-cloud-precipitation interactions for climate and atmospheric chemistry. The presentations will include reports on field campaigns and laboratory studies, as well as theoretical investigations, microphysical, meso- and global- scale modeling studies.”

The deadline for abstracts is on 13 JANUARY 2009.

Details about the conference and submission of abstracts can be found at:

These meetings at the EGU underscore that a focus on just CO2 as the dominate human climate forcing, as is promoted by the IPCC and CCSP reports, is scientifically flawed.

These meeting support the second hypothesis listed in the weblog

Three Climate Change Hypotheses – Only One Of Which Can Be True


while natural variations are important, the human influence is significant and involves a diverse range of first-order climate forcings (including, but not limited to the human input of CO2.

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