Food systems are crumbling due to climate change, biodiversity loss and ecosystem destruction. Dwindling water sources and severe droughts are degrading soils, resulting in almost one quarter of the earth’s land being less productive. But it’s still possible to turn back the tide, restore ecosystems, and manage our land and water sustainably – if rural people take the lead. Learn from local communities In southern Mauritania, sparse rainfall has turned fields to badlands where nothing can grow.