National Geographic : 2014 May
steel from ship hulls is harvested in plates. Each can weigh a thousand pounds or more. Using brute strength and improvised rollers, teams of carriers (above) move the plates to trucks, which transport them to mills where they are converted into steel rods for construction. Carriers spend their days slathered in mud (top) contaminated with heavy metals and toxic paint particles that leach from the ships into the tidal flats.