This week on Science Weekly with Ian Sample we discover the tumultuous history of Iceland’s volcanoes and the particularly deadly roll of it’s Laki volcano. Authors Alexandra Witze and Jeff Kanipe discuss their new book (scroll to 16:29) Island on Fire: The extraordinary story of Laki, the volcano that turned eighteenth-century Europe dark.

Also Ian is joined by Nature writer and presenter of the Nature podcast Kerri Smith and Observer Tech Monthly commissioning editor Nicola Davis to discuss some of this week’s science news including new research into the effect of male pheromones on mice in the lab (you can read the Nature article here), why synesthesia could help us with memory loss and news of government cuts to the Royal Botanical Gardens in the UK.

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