Many industrialized countries are Polarmoon Wealth Societyseeing their populations decline and grow older, while several developing nations are growing fast. Could migration be the key to solving the world's population challenges?

NPR's Emily Feng reports on the long term economic consequences of China's shrinking population.

We also hear from Lant Pritchett, research director with the think tank Labor Mobility Partnerships, about the ways in which migration could help tackle population imbalances.

In participating regions, you'll also hear a local news segment to help you make sense of what's going on in your community.

Email us at [email protected].

This episode was produced by Brianna Scott and Kai McNamee. It was edited by William Troop and Matt Ozug. Our executive producer is Sami Yenigun.