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Old 07-18-2013, 04:24 PM   #1
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worm Worm poo's window into past climate

Worm poo's window into past climate
By Simon Redfern
BBC News
10 July 2013 Last updated at 12:47 ET

BBC News - Worm poo's window into past climate
excerpt from above:
Quote:
Earthworm faeces can be used to measure past temperatures, providing a window into the ancient climate.

A study shows that the chemistry of small balls of chalky crystals secreted into soil by the worms varies with temperature.

A UK team said the granules could be compared with other climatic "proxies", such as ice cores and deep sea sediments...
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