The Frozen Diary – history unlocked with the help of ultrapure water
May 19 2006
Author: Dr Paul Whitehead on behalf of Elga Labwater
For more than ten years Carlo Barbante and his research team at the University of Venice’s Department of Environmental Sciences have been digging up the Antarctic snow to look for trace levels of heavy metals. The snow is a deep-frozen record of atmospheres of centuries past, and the heavy metals show how atmospheric pollution has changed with the passing years.
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