The Herald: Scientists could glean vital clues about the effects of climate change from ice samples which are being brought back from the Antarctic. Thanks to a team of three British adventurers, experts will be able to analyse material from the Beardmore Glacier for the first time in nearly 30 years. The Shackleton centenary expedition team will collect “blue ice” samples. They will aid understanding of how the glacier is responding to climate change. Sir Ernest Shackleton, a …