The small Muslim province of Ningxia is one of hardest hit places in the world by climate change "“ surrounded by two expanding deserts which look set to claim land the UN has already declared "unfit for human habitation". Here, China has launched one of it's largest operations to mitigate the effects of climate change "“ relocating up to half a million of its poorest peasant farmers, goat herders and their families from small rural villages, to newly built urban centres, irrigated by the yellow river. The area also contains one of the world's largest desert reclamation schemes "“ where vast sand dunes are criss crossed with matting. This is the story of the people at the heart of the worlds largest planned eco-migration.