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Cool Science Radio

Cool Science Radio | May 29, 2025

By Lynn Ware Peek,

Katie Mullaly

Published May 29, 2025 at 5:26 PM MDT

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Writer and broadcaster Ed Conway discusses his book "Material World: The Six Raw Materials That Shape Modern Civilization," which explores the critical role of six raw materials— salt, iron, copper, oil, lithium and silicon — in shaping modern civilization. (0:50)

Science journalist Humberto Basilio talks about the relative stability or instability of the system of ocean currents called the Atlantic Meridional Overturning Circulation, AMOC, which is a system of ocean currents that circulates water within the Atlantic Ocean. (27:15)

Cool Science Radio

Lynn Ware Peek

KPCW Co-Host / Producer

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Katie Mullaly

Cool Science Radio Co-Host

See stories by Katie Mullaly