There are only few human beings who can adapt, survive and thrive in the coldest regions on earth. And below a certain temperature, death is inevitable. Sir Ranulph Fiennes has spent much of his life exploring and working in conditions of extreme cold. The loss of many of his fingers to frostbite is a testament to the horrors man is exposed to at such perilous temperatures. With the many adventures he has led over the past 40 years, testing his limits of endurance to the maximum, he deservedly holds the title of 'the world's greatest explorer'.