Here, deep into the Arctic Circle and midway between Norway and the north pole, he is investigating the health of the glaciers, by comparing them to what they looked like in archival photos.

about 750 miles north of the Arctic Circle and about 950 miles south of the North Pole. After piling on several layers of clothes — six on top and three on the bottom, Tama tagged along.

Finally we saw sunshine in the Arctic Circle. Photographer Rosie Thomas It was -18°C Temperatures in Finland in February are by no means warm, even with the sun. It was -18°C. Batteries were ...