Melting alpine glaciers are revealing fascinating clues to Neolithic life in the high mountains... Everyone knows the story of Oetzi the Ice Man, found in an Austrian glacier in 1991. Oetzi was discovered at an altitude of over 3,000m. He lived in about 3,300 BC, leading to speculation that the Alps may have had more human habitation than previously suspected. Now, more dramatic findings from the 2,756m Schnidejoch glacier in Switzerland have confirmed the theory. It all started at the end of the long hot summer of 2003, when a Swiss couple, hiking across a melting Schnidejoch, came across a...