This week, Alok Jha is joined by environmental campiagner, Bryony Worthington. She's the founder of sandbag.org.uk - probably the most creative anti-climate change website around. Environment correspondent David Adam is on hand to lend his expertise to the discussions about energy policy, pollution, and cleaner fuels.
Also in the show, we hear from leading oncologist Dr Louis Weiner on how immunotherapy could hold the key to revolutionising cancer treatments.
Finally, Ian Sample pops into the pod to help with the Newsjam, which this week concerns chimpanzees' sexual politics; the science of screaming; the secret to being a cad; and the eyebrow-raising headline, 'Gay men and heterosexual women have similarly shaped brains, research shows'. Controversial...
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