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clockTime to watch: 03:01Posted on June 26, 2017

Sarah Toumi

Rolex Young Laureate, 2016

Lower rainfall and severe droughts are threatening to turn three-quarters of Tunisia’s agricultural lands into desert. Sarah Toumi is holding back the Sahara by planting Acacia trees, which revitalize the land, preventing further erosion and salinization. She is also working to reduce rural poverty by introducing sustainable farming practices, encouraging farmers to plant crops more suited to the changing climate than olives and almonds.

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