This might sound like science fiction, but the world’s first clean hamburger was grown from cells – and then eaten – in 2013. It cost $330,000. Four years of research and development brought the price down to $11 per unit, and within another decade industrially produced clean meat is expected to be cheaper than slaughtered meat. This technological development could save billions of animals from a life of abject misery, could help feed billions of malnourished humans, and could simultaneously help to prevent ecological meltdown.12
