Audio is streamed directly from the publisher (traffic.libsyn.com) as published in their RSS feed. Play Podcasts does not host this file. Rights-holders can request removal through the copyright & takedown page.
Show Notes
As the world's metropolises expand to accommodate more people, the earth's supply of sand is being pushed to the limit. Deceptively abundant, the basic raw material for glass and concrete can't keep up with demand. In this podcast, Pascal Peduzzi, of the United Nations Environmental Programme, talks about how our overdependence on sand is unsustainable.