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Has The Mystery Of The Antarctic Ice Sheet Been Solved?

ScienceDaily (Feb. 29, 2008) — A team of scientists from Cardiff University's School of Earth and Ocean Sciences and Amgueddfa Cymru - National Museum Wales travelled to Africa to find new evidence of climate change which helps explain some of the mystery surrounding the appearance of the Antarctic ice sheet.

Dr Carrie Lear, Lecturer in Palaeoceanography, and her team at Cardiff have presented new temperature records using ancient sea floor mud recovered from Tanzania, East Africa. The shell chemistry of pin-head sized animals called foraminifera ("forams") reveal that ocean temperatures did in fact cool by about 2.5 degrees Celsius.

Image Above: Foram called "Halkyardia minima", which is about the size of a pin-head. (Credit: Image courtesy of Cardiff University)

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