![A History of the World in 100 Objects show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/026/875/small/a-history-of-the-world-in-100-objects.jpg)
Summary: A lamp that runs off sunlight. Neil MacGregor, Director of the British Museum, looks at the final object in the series: a solar-powered lamp with a charger that can bring cheap light and power to people around the world with no access to the electric grid. Simple, cheap and clean – is this the revolutionary technology of our future? With contributions from Aloka Sarder, a mother and adult student in West Bengal, and Nick Stern, expert on the economics of climate change.