On a remote and windswept island some 700km south of New Zealand grows the world’s loneliest tree, RNZ reveals. The 100-year-old Sitka spruce on Campbell Island has been recognised by the Guinness World Records as the “most remote tree in the world”. However, technically, this lonely tree should not be here. Its very existence is now helping to advance groundbreaking climate change research, says climate scientist Dr Jocelyn Turnbull.