What if water infrastructure could do more than deliver clean drinking water — what if it could transform economies, support food security, reduce climate migration, and unite communities across borders?

In this 3-part series, Urban Limitrophe explores the story of the TransAfrica Pipeline (TAP) — a visionary project to bring clean, desalinated water across the Sahel through a 7,000-kilometre pipeline powered by renewable energy. Through conversations with co-founders Dr. Rod Tennyson and Dr. Romila Verma, we unpack how water connects to everything: agriculture, innovation, migration, environmental justice, and community resilience.

TAP is more than a pipeline — it’s a call to imagine water systems built with care, innovation, and the future in mind.

Guest: Dr. Rod Tennyson & Dr. Romila Verma

Episode 1: How to Build a Continent-Sized Water System

How do you build a continent-sized water system?

In this episode, we explore what it takes to design a 7,000-kilometre pipeline to bring clean water across one of the driest regions in the world. Co-founders Dr. Rod Tennyson and Dr. Romila Verma share the origin story of the TransAfrica Pipeline (TAP) — a visionary infrastructure project that combines solar-powered desalination, salt recovery, and lightweight materials to deliver sustainable water access across the Sahel. From technical design to big-picture ambition, we dive into how TAP was engineered — and how it could change lives on a continental scale.

Acknowledgements:

This episode is co-supported by the Nurubian, the University of Toronto School of Cities and the Department of Geography and Planning.

About Urban Limitrophe:

Please visit www.urbanlimitrophe.com for all episode show notes, references and guest details.

To access social media, newsletter, and additional projects visit: https://linktr.ee/urbanlimitrophe

Please address any related communication to hello[at]urbanlimitrophe.com

Credits:

Music by Imany Lambropoulos

Podcast concept, development, and design by Alexandra Lambropoulos

What does it mean to rebuild with dignity after disaster strikes?

In this episode of Urban Limitrophe, we speak with architect Omar Degan, founder of DO Architecture and the Fragility Lab. Together, they explore how architecture can be a tool for healing, not just shelter — and how co-designing with communities leads to more just, resilient spaces in the aftermath of crisis.

Omar shares his journey designing in fragile contexts — from post-conflict housing in Somalia to consulting for the UN — and how his work challenges traditional top-down models of humanitarian aid. Instead of quick fixes, his approach centers culture, collaboration, and care.

You’ll learn how DO Architecture uses emergency design to center communities in fragile contexts, and why beauty, dignity, and belonging should never be seen as luxuries — even in disaster recovery.

Whether you're a planner, designer, changemaker, or curious listener, this conversation invites you to rethink how we rebuild, who we build for, and what’s possible when communities lead the way.

Guest: Omar Degan

Acknowledgements:

This episode is co-supported by the Nurubian, the University of Toronto School of Cities and the Department of Geography and Planning.

About Urban Limitrophe:

Please visit www.urbanlimitrophe.com for all episode show notes, references and guest details.

To access our newsletter visit: https://tinyurl.com/ULNewsletter

Please address any related communication to hello[at]urbanlimitrophe.com

Credits:

Music by Imany Lambropoulos

Podcast concept, development, and design by Alexandra Lambropoulos

What do you build when the systems around you fall short?

In Season 2 of Urban Limitrophe, we travel across continents, through cities, and into communities — from the innovation hubs of Botswana to the rural coastlines of Nova Scotia, the medinas of Tunisia to the farmlands of Togo, from Athens to Abidjan.

This season is about community, imagination, innovation, and the power of everyday people to shape the places they call home — in housing, culture, cycling, climate, and beyond.

We’ll hear from architects, artists, activists, and storytellers who are transforming how cities are designed, governed, remembered, and lived in — one idea, one connection, one act of care at a time.

Subscribe now. New episodes every month.