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Alice Roberts is a physical anthropologist, author, and TV science presenter - as well as professor of Public Engagement in Science at the University of Birmingham.

Speaking to Richard Bacon at the Cheltenham International Science Festival, she explains why the public needs a degree of 'scientific literacy' in order to understand & solve the big challenges facing society, and how to widen the debate further

The Cheltenham International Science Festival attracts thousands of visitors to hear the world's leading scientists in action over the course of six days in June.

This clip is originally from Richard Bacon on Thursday 05 June 2014