Over 25 metals are hiding in the world’s 9 billion smartphones. We traveled the globe to learn how they’re harvested, from lithium for batteries to silver for circuit boards and sensors. 00:00 - Intro 00:22 - Gold 12:03 - Lithium 24:44 - Silver 39:37 - Graphite 48:44 - Mica 58:05 - Tin 01:09:10 - Cobalt 01:15:07 - Copper 01:16:21 - Credits ------------------------------------------------------ #plastic #worldwidewaste #businessinsider MORE MARATHONS: US Marine, Army Ranger, And Air Force Pilot Break Down Their Field Combat Gear | Loadout Marathon youtu.be/elF2e4m-79Y 4 Of The World's Most Expensive Calligraphy Tools | So Expensive | Business Insider Marathon youtu.be/s9Vvir2oNIg How The Military Feeds Hungry Marines, Army Soldiers, West Point Cadets, And More | Marathon youtu.be/oYrsULo6K-I Business Insider tells you all you need to know about business, finance, tech, retail, and more. Visit our homepage for the top stories of the day: b...