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. Romila Verma and Dr. Rod Tennyson, 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, creativity, and the future in mind.

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.



You can listen to the podcast on The Nurubian |  Spotify | Podchaser | Stitcher | Amazon Music | RSS | Apple Podcasts 


Episode 2: How Cities Can Rethink Water — With People, Planning, and Purpose

Why do some water systems work— and others fail?

Successful water infrastructure isn’t just about engineering. There’s a hidden social side — shaped by governance, culture, and power — that often determines whether systems actually work, or get built at all.

In this second episode, beyond the technical side of infrastructure to explore the social, ethical, and ecological dimensions of water access. Dr. Verma introduces her Four Pillars of Water Sustainability — science, governance, economics, and cultural connection — and we explore how these ideas can reshape how cities, towns, and regions manage water today. From sponge cities to sacred rivers, we discuss why collaboration and care are at the heart of any truly sustainable water system.

Episode 3: Why Solving Africa’s Water Crisis Matters Everywhere — and What We Can Do About It

How will water scarcity shape the future of cities, migration, and global stability?

From climate change to migration, the African water crisis is deeply connected to global challenges — and global solutions. 

In the final episode of this series, we explore why water scarcity is not just a regional issue, but a global one. We unpack the legacy of extractive systems, the role of youth and local leadership, and the urgency of declaring not just a climate emergency, but a water emergency. 

Through the lens of the TransAfrica Pipeline, we ask: what does global responsibility look like in a time of water crisis — and what can we do to build a more secure, just, and caring future?


Guests

Dr. Rod Tennyson

Co-founder and Chair of the Board of Directors of TAP, Dr. Tennyson received his Ph.D in Aerospace Engineering from the University of Toronto. He was Professor and Director of the University of Toronto Institute for Aerospace Studies, with research experience in advanced materials and aerospace structures, fiber optic sensor systems and pipeline integrity. He has published 215 papers in these fields, holds six patents on sensing systems and has received many awards for his pioneering work. Dr. Tennyson directs all research and engineering aspects of the TAP project and leads negotiations with funding resources, governments and NGOs.


Dr. Romila Verma

A founding Director of TAP, Dr. Verma is an Instructor at the School of the Environment and Department of Geography at the University of Toronto. Her teaching and research interests are in the field of global water management, environmental science and climate change impacts. She is also the founder of Water Speaks, an organization committed to advancing and translating the voice of water through research, education and action.

Shownotes

Acknowledgements

Sponsorships


Support
  • Music Producer: Imany Lambropoulos
  • Podcast Host and Graphic Designer: Alexandra Lambropoulos

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