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...manage climate change, far outweighed the costs of action and that was the conclusion. But it was a conclusion that certainly for me I came to as a result of the work. RH: There was some criticism by other academics at the time that you hadn’t submitted the review for any peer reviewed process, it was given to the media first and some people say, and I think there’s...

...managed to catch an extraordinary sequence where a young male polar bear actually goes onto a walrus island and attacks what is effectively really lethal prey with foot long tusks. And it’s a really powerful sequence and in fact the polar bear is fatally injured at the end of that sequence, and for me I felt it operated on two levels; it was a very powerful sequence in...

...introduction to the frozen planet, including the temperature in the polar regions; the energy from the Sun and the seasons; reading and understanding graphs and maps; and how the Arctic and Antarctic regions are defined...This free course is a general introduction to the frozen planet, including the temperature in the polar regions; the energy from the Sun and the...