"A century ago, the poles were just about the most inaccessible place on Earth. Today that has changed. Nonetheless, to have visited them both within a few weeks of one another is a huge privilege. "Until now, most of his previous programs have focused on tropical parts of the world, he noted. "Having seen what I’ve just seen, from penguins to polar bears, from the frozen ocean to snow-covered volcanoes, I can’t imagine why I’ve left visiting these marvellous, astonishing and beautiful places until so late in my life. "His new series, "Frozen Planet" will be broadcast in late 2011.