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![- Darwin Festival 2009 from the Naked Scientists show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/034/516/small/darwin-festival-2009-from-the-naked-scientists.png)
Summary: The fourth day brings together geologists and an exploration of Darwin's early scientific forays. We also find out how we have the power to solve climate change in a generation, why we should make friends with yeast and how the Obama government will promote science research.