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Misha Glenny explores the world of rare earth metals and other critical raw materials. They are vital for the future of technology and the green transition. But some see China's monopoly on production as a major global threat.

In the first of five episodes, Misha finds out what the 17 rare earth metals are and hears about their weird and wonderful applications. He also discovers how China has managed to dominate the mining and refining of them.

Guests:
Dr Julie Klinger, Assistant Professor in the Department of Geography and Spatial Sciences at the University of Delaware and author of Rare Earth Frontiers: From Terrestrial Subsoils to Lunar Landscapes
Sophia Kalantzakos, Global Distinguished Professor in Environmental Studies and Public Policy at New York University and the author of China and the Geopolitics of Rare Earths

Producer: Ben Carter
Editor: Hugh Levinson
Sound engineer: James Beard
Production coordinator: Janet Staples