In our first episode of City of the Future, our new bi-weekly podcast, we explore how mass timber could transform our cities — by making wooden skyscrapers possible. We talk to the world’s leading expert on tall wooden buildings, Michael Green, and Sidewalk’s Director of Buildings Innovation, Karim Khalifa. This episode was produced by Kara Oehler. Our hosts are Eric Jaffe and Vanessa Quirk. Mix by Sharif Youssef. Our music is by Adaam James Levine-Areddy (check out his band at amsterdamlost.com). Our art is by Tim Kau. Special thanks to all who made this episode possible: Michael Green, Karim Khalifa, Claire Mullen, Eric Baczuk, Benjamen Walker, and Andrew Callaway.