Iceberg drifting away from the Tasman glacier

Iceberg drifting away from the Haupapa/Tasman Glacier, Aoraki/Mount Count National Park, New Zealand. The glacier is covered with rocks that gives him this dark color. Rocks slow down melting by insulating the glacier from sunlight. Icebergs that break off from the terminal face of the glacier carry these rocks across the Tasman lake that formed in 1973 due to the melting and retreat of the Tasman Glacier. In four decades, the ice volume of New Zealand’s glaciers (around 3,000) has decreased by a third and the melting rate increases faster in New Zealand than in other regions of the world.