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    In need of a new photo for your desktop? We have one for you! The great ice sheets of Greenland and Antarctica are huge piles of old snow compressed to ice, and spreading under their own weight. They grow by snowfall on top, and shrink by melting around the sides and by formation of icebergs in marginal seas.
    Our special guest speakers for this May 27 event are AAAS Fellow Peter Wilderer, an environmental engineer (Emeritus) at Technische Universität München,and AAAS member Ombeline Rossier, a microbiologist at the Max von Pettenkofer-Institute, University of Munich.
    Our special guest speakers for this May 30 Berlin event are AAAS members Klaus Affeld and Udo Heinemann. Affeld is the director of the Biofluid Mechancis Lab at Charité – Universitätsmedizin Berlin. Heinemann is a professor of molecular medicine at the Max Delbrück Center for Molecular Medicine, Macromolecular Structure and Interaction.
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