The Antarctic Treaty is the rulebook to the South Pole. But when it was written sixty years ago, the creep of Antarctic tourism and iceberg harvesting were issues nobody saw coming. As a potential endpoint to the treaty inches closer, and as the south gets busier and heats up, Thomas Bywater questions if these rules at breaking point?

With thanks to Ceisha Poirot, Alan Hemmings, Aaron Russ, Donald Rothwell

For more on this series, head to nzherald.co.nz/detour