Digging their way through three inches of ice and snow, they defied health and safety warnings to clear their street themselves.

Because of the thin air and high altitude along with the ice and snow on the surface of the solar reflection, this has become the coldest places in the world.

Once the ice comes, the ship will have to winter over.

Meanwhile a country such as Panama would prefer a cooler world in which ice continues to seal off the North-West Passage and to prevent competition with its canal.

The explorers dared the dangers of the ice north.