'Shocked' by the loss: Scientists sound the alarm on New Zealand's melting glaciers

Every year scientists in New Zealand fly over some of the country's most iconic glaciers -- ancient ice "rivers" that descend from the Southern Alps, a spine of mountains that extend along the South Island. And almost every year, they find them shrinking.

'Shocked' by the loss: Scientists sound the alarm on New Zealand's melting glaciers
Every year scientists in New Zealand fly over some of the country's most iconic glaciers -- ancient ice "rivers" that descend from the Southern Alps, a spine of mountains that extend along the South Island. And almost every year, they find them shrinking.