From howling blizzards to the gentlest and most delicate snowflakes, Let It Snow celebrates snow in all its forms.
How snow is produced, different types and the weather conditions that cause it.
Take a look at some spectacular images from Gordon Buchanan's Polar Bear Family & Me.
Polar pictures from the programme Vanishing Antarctic.
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?
Find out more about the most inhospitable places on the planet; the Arctic and Antarctic.
Follow top travel writer Tom Hall's advice on how to get to the Antarctic.