In the organizer's words:

Lecture by Dr. Maria Hörhold and Dr. Daniela Jansen, Alfred Wegener Institute Bremerhaven, Glaciology

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Who hasn't heard the reference to "yesterday's snow" - as a parable for things that are long gone and no longer relevant. But it is yesterday's snow that forms the Earth's large ice sheets on Greenland and in the Antarctic. Snow that does not melt is constantly being compressed by new snow, thereby compacting it and ultimately transforming it into glacial ice. Each layer of snow contains information about the climatic conditions at the time of snowfall. From microscopically small ice crystals to ice streams hundreds of kilometers long: we at the Alfred Wegener Institute's glaciology department study the ice from the polar regions and find out what kind of story it tells us - about the ice sheets, ice streams and past climates. All preserved in yesterday's snow.