50 Things That Made the Modern Economy - Concrete

It's improved health, school attendance, agricultural productivity and farm worker wages, but concrete has a poor reputation. It takes a lot of energy to produce and releases a great deal of CO2 in the process. However, architects appreciate its versatility and there are few more important inventions. Tim Harford tells the remarkable hidden story of a ubiquitous, unloved material. (Image: Masons hands spread concrete, Credit: APGuide/Shutterstock)

Bay Curious - Where Did the Wild Parrots of San Francisco Come From?

The busy streets of San Francisco seems like the last place you'd find wild parrots. And yet, there they are. How'd they get here?


Reported by Jessica Placzek. Produced and edited by Olivia Allen-Price, Vinnee Tong, Paul Lancour and Julia McEvoy. Theme music by Pat Mesiti-Miller.


Ask us a question at BayCurious.org.

Follow Olivia Allen-Price on Twitter @oallenprice.

The Gist - Revenge of the Music Nerds

Our favorite cultural cabal in Cleveland has spoken. The Rock and Roll Hall of Fame has announced its nominees for induction in 2017—and the picks are incomparable as always, with Chic, Pearl Jam, and Kraftwerk in the running. Chris Molanphy discusses shoo-ins and long shots. He writes the “Why Is This Song No. 1?“ column for Slate.

For the Spiel, a special holiday message from Mike Pesca.  Today’s sponsors:

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