Telegraph: Researchers have found that dust blown south from Patagonia and deposited in the ice over 80,000 years is providing vital information about glacier activity. It is hoped the findings from the past will help scientists predict environmental changes in the future. The study, carried out by the universities of Edinburgh, Stirling and Lille, shows that the very coldest periods of the last ice age correspond with the dustiest periods in the Antarctic region’s past. During …