Copper - essential, in moderation

Our Changing World - A podcast by RNZ - Wednesdays

Try Bookbeat 60! days for free, click here

Enjoy a whole world of audiobooks and e-books, everything from new releases to the classics

Copper is a soft metal that is an essential element for enzymes and life, gives octopuses their blue blood and was often used to make coins. Allan Blackman from AUT has the lowdown on copper in ep 22 of Elemental.

Visit the podcast's native language site