ice

Karl-Ole Kristensen holds up two different types of glacier ice

Ilulissat, Greenland

Karl-Ole Kristensen grew up in a house that overlooked this bay and the masses of icebergs from the glacier next door: Jakobshavn Glacier. Here, aboard the Esle in Ilulissat, Greenland, Karl-Ole holds white ice in his right hand and black ice in his left. “Black ice is like crystal, like a window,” he says. Black…

Germain Tremblay looks out at the sea ice early in the morning

(Post 2 of 2) Ice Pilot Germain Tremblay stands on the bridge of the National Geographic Explorer at 2 a.m. We are southbound, approaching Hell Gate, and looking for a safe passage out to southern Ellesmere Island. “It’s going well,” he says. “Look to the horizon and you see how it is black? Black is…