| I've resorted to thermal underwear, several layers of jerseys, winter stockings and a polar fleece jacket. |
| A polar vortex is a persistent, large-scale weather pattern, likened to a jet stream on Earth in the upper atmosphere. |
| Come face to face with polar bears, walruses, harbour seals and beluga whales. |
| So on my solo polar expeditions I have porridge, ground almonds, raisins and butter. |
| Together, the Pleistocene and Holocene make up the Quaternary period, marked by waxing and waning of polar glaciers. |
| More than a century of conventional wisdom says that winter, when the ice is both hard and plentiful, is the best time to travel the polar pack. |
