Old paintings and new photographs reveal some NZ glaciers may soon be extinct
John Gully, On the Great Godley Glacier , watercolour. Lakes and sediment now exist in these valleys where glaciers used to flow. Credit: Alexander Turnbull Library, CC BY-SA
As the austral summer draws to a close, we are preparing to fly over the Southern Alps to survey glaciers. This annual flight supports the longest scientific study of Aotearoa New Zealand's icescapes—and it shows that all of our glaciers have retreated…