Kiara Nirghin: Schoolgirl Inventor Who's Fighting Drought with Orange Peels

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Johannesburg schoolgirl Kiara Nirghin, 16, has won a Google prize for an invention that could solve a drought crisis in South Africa

South African Kiara Nirghin, 16, invented a polymer from orange peel and avocado skins, capable of storing massive reserves of water, allowing farmers to maintain crops at minimal cost.