A Pyrotechnic History Of Humanity - Agriculture: The solar energy revolution - ÃÛÑ¿´«Ã½ Sounds

A Pyrotechnic History Of Humanity - Agriculture: The solar energy revolution - ÃÛÑ¿´«Ã½ Sounds


Agriculture: The solar energy revolution

Justin Rowlatt looks at the energy revolutions that drove human history.

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