Guardian: Stephen Pax Leonard will soon swap the lawns, libraries and high tables of Cambridge University for three months of darkness, temperatures as low as -40C and hunting seals for food with a spear. But the academic researcher, who leaves Britain this weekend, has a mission: to take the last chance to document the language and traditions of an entire culture. “I’m extremely excited but, yes, also apprehensive,” Leonard said as he made the final preparations for what is, by anyone’s …