Adjoa Andoh reads from Sara Wheeler's account of her journey to the lands that border the Arctic Ocean
Sara Wheeler finds traces of American entrepreneurial drive in the wide spaces of Alaska and visits a bedrock-mapping project on an isolated Canadian island.
DetailsSara Wheeler is struck by some of the paradoxes of climate change as she flies above the huge Greenland ice sheet.
DetailsSara Wheeler remembers some of the explorers who have sought the North Pole - by boat, on foot and even by hot air balloon.
DetailsSara Wheeler considers what the Arctic means to the rest of the world and begins her travels in the semi-inhabited fringes of Asian Russia, nine time zones from Moscow.
DetailsSara Wheeler journeys to a remote archipelago, visiting the ancient holy site which became one of the most feared places in 20th-century Russia.
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