It’s an idea so simple it could come from a five-year-old.

At least that’s how Lufa Farms founder, Mohamed Hage, refers to their idea of turning idle rooftops into working greenhouses. But the real story - and this conversation - is about what it takes to build it, and what becomes possible once you do.

In Montreal, Lufa has become a household name for its rooftop farms, local food delivery, and hunger relief work - and that’s just the beginning.

Alongside Mo, we’re joined by Dave Furneaux, a seasoned investor and builder, to talk about their friendship, what makes the “soul” of a business, and why the risks of doing something transformative are worth it.

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The How to Change the World Podcast is produced by World Within Studios with PRX.

Producer and Composer: Alexandre Miller

Editors: Eve Weston and Martin McGreevy

Special Thanks: Gabe Sweeney

Coral reefs are disappearing fast - and they matter more to our daily lives than most of us realize. Sam Teicher, co-founder of Coral Vita, joins the pod to explain their fascinating approach to reef restoration, which he calls “taking coral to the gym.” We talk Category 5 hurricanes, why the Bahamas is leading this work, and why coral reefs matter whether you live by the ocean or nowhere near one. We’ve all heard what’s going wrong in the climate change fight - this is a conversation about what’s still possible.

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The How to Change the World Podcast is produced by World Within Studios with PRX.

Producer and Composer: Alexandre Miller

Editors: Kenny McMillan

Special Thanks: Gabe Sweeney

SFX credits:

Sunrise east and west coast waves skagen branch 07-27.wav by Kyster -- https://freesound.org/s/126007/ -- License: Attribution 4.0

Arian Moayed (Stewy on Succession, Agent Cleary in the MCU) joins us for a joyfully real conversation about acting, ambition, and stories that can actually move culture. Arian opens up about his humble beginnings, the winding road to the stage and screen, and why the stories we tell actually matter. He also shares what it was like working with Robin Williams on Broadway (and why Robin was exactly who you hoped he’d be).

Plus, Arian shares how his impact work with Waterwell uses theater to spark change.

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The How to Change the World Podcast is produced by World Within Studios with PRX.

Producer and Composer: Alexandre Miller

Editors: Eve Weston and Martin McGreevy

Special Thanks: Gabe Sweeney