Take a look at some spectacular images from Gordon Buchanan's Polar Bear Family & Me.
A land of giant icebergs, huge distances and endless snowfields.
Hurtigruten ferries sail the Norwegian coast, travelling through breathtaking scenery.
Read about the Arctic explorers who risked everything to reach the top of the world.
What impact will global warming, holes in the ozone and atmospheric haze have?
Polar bears are the largest land carnivores on Earth.
Find out more about the most inhospitable places on the planet; the Arctic and Antarctic.