This beautifully-shot film follows a mother and her two cubs - one fearless brother and his slightly less confident sister - as they embark on the 400-mile journey to the seal-rich pack ice
which surrounds the north pole.
THE first person to walk solo across the pack ice
from Canada to the North Pole is planning to return - in a yacht.
The project is a continuation of an Arctic Observing Network project to measure the penetration of solar radiation, temperature, and biological characteristics beneath first-year pack ice
during ice-covered, melting, and open-water phases.
An international team of researchers set up 16 underwater microphones to eavesdrop on narwhal click vocalizations at 11 pack ice
sites in Greenland's Baffin Bay in 2013.
Emergency crews could face total darkness, extreme storms, and shifting pack ice
, racing against time as the oil puts endangered polar bears, seals, and other wildlife at risk.
The eastern end of that strait was (and often still is) blocked year-round by pack ice
moving slowly south from the permanent polar ice cap.
We had spent the past few days picking our way, sometimes frustratingly slowly, through dense patches of pack ice
on our approach to the continent.
This is because they are designed to resist typical forces of induced by pack ice
, but they are not designed to resist the extreme sea ice conditions.
Abandoned for two nights in the open, 78 men froze to death on the pack ice
Kukla and Gavin said in their cautious report to the National Science Foundation, their funding agency, that their studies indicate that the extent of pack ice
around Antarctica during summers has decreased in the 1970s compared with the 1930s.
A HUNDRED years ago, Sir Ernest Shackleton's ship Endurance, with a crew of 28 men en route to their famous expedition to try and cross the Antarctic, became beset in pack ice
Levick was in the other group, which travelled along the coast to make scientific observations but became stranded from the base camp when pack ice
prevented their ship from picking them up.