This week David talks to John Lanchester about his new novel depicting Britain after a climate catastrophe and encircled by a vast wall that must be defended at all costs. Where does this nightmarish vision come from? How closely does it track what we know about climate change? And what does it tell us about our political choices now and in the future? Plus we discuss the relationship between climate and capitalism. https://amzn.to/2Sx7PAD
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