Countries around the world have agreed to cut carbon emissions but what are they doing to remove the existing CO2 from the air? And how a new generation of surgical robots is about to enter the operating theatre. Also, why do birds really have such colourful bodies? Jason Palmer hosts.
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📆 2017-11-14 16:59 / ⌛ 00:19:24
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📆 2017-11-08 19:05 / ⌛ 00:14:57