The Grand Challengers Podcast

What if the kitchen knife you have used your whole life was designed for a fight, not for cooking? Douglas Katz thinks we can do better. "If you designed a knife for a robot, it wouldn't look like the linear knife that we have today," he says, and that single reframe sits at the heart of this episode. Douglas is a West Point graduate, a disabled US Army veteran and a lifelong invent...

What if the system you spent four decades building turned out to not be enough? David Gottfried is the father of the global green building movement. He founded the U.S. Green Building Council and the World Green Building Council, and helped create LEED, the rating system now used across more than 180 countries and tied to a trillion-dollar green economy. And yet he is the first to say it has not b...

"Why is our architecture not as diverse as our culture is progressive?" That's the question Toronto-based architect Alexander Josephson keeps asking. On this episode, he doesn't pull punches.  Alex is the co-founder and creative director of PARTISANS, the studio behind the Grotto Sauna, the masterplan to resurrect Toronto's gargantuan Hearn power plant into a cultural dist...

Why does profit feel a lot like breathing... necessary to stay alive, but never the actual reason you're here? In Episode 63, entrepreneur and business expert Jean-Christian Rindoni argues that businesses, like human beings, need profit to live, but their purpose has to be more than just breathing. Recording from his new home on Portugal's Algarve coast, recently ranked among the world&a...

What does a horror-game-loving Italian engineer have to do with cleaning your wastewater? More than you'd think... and the journey starts in a paddy rice field. In Episode 62 of The Grand Challengers Podcast, host Peter Marcus Bach welcomes Dr Anacleto Rizzo, Partner at IRIDRA Srl in Florence, President of Global Wetland Technology, and one of Europe's most active voices on nature-based...

What happens to your rubbish when you live on an island with nowhere to ship it? On Grand Cayman, the answer is a 90-foot mountain of waste the locals call "Mount Trashmore" and it is not alone. Most of the world's 57 Small Island Developing States (SIDS) face the same closed-loop reality, where every bottle, bag and broken appliance has to go somewhere, and "somewhere" is...

Why do some cities grind to a halt during storms while others recover quickly? The answer often lies in what happens when water, energy and transport fail at the same time, and whether the people managing them are actually talking to each other. In Episode 60, Dr Maryam Imani, Associate Professor of Water Systems Engineering at Anglia Ruskin University, takes us into the hidden interdependencies o...

In a world racing toward automation and AI-driven efficiency, what happens to the humans inside the machine? With nearly a billion people worldwide living with a mental health disorder, youth burnout rates climbing, and a loneliness epidemic affecting 50% of adults in the US alone, the question is no longer theoretical, it is URGENT! On this episode, human and organizational development expert Gal...

We train AI systems to optimize for metrics — but what if the real alignment problem isn't in the machine? What if it starts with us? Juan Pablo Carbajal is a physicist, interdisciplinary researcher, and educator at the Eastern Switzerland University of Applied Sciences (OST). Originally from Argentina, his career spans physics, robotics, biomechanics, agronomy, machine learning, and water re...

Every machine that lifts, digs, or hauls relies on hydraulics — a technology that hasn't changed in over 50 years. But what if you could replace that leaky, energy-wasting oil with a belt-and-pulley system that's three times faster, three times more efficient, and three times more durable, with zero emissions? That's what Hiten Sonpal and his team at RISE Robotics are doing. In Epis...

Fred Jordan, scientist, entrepreneur and co-founder of AlpVision and FinalSpark in Vevey, Switzerland reveals the power of mathematics to us and how he thinks differently when it comes to computing. We dive deep into how he has combined industrial processing and digital watermarking to create anti-counterfeiting technology and uncover the mystery of "Organoid Intelligence", also known as...

Welcome to this Mini-Series on The Grand Challengers Podcast! The topic of generative artificial intelligence (AI) has been in all our minds over the past few years and is gaining even more momentum with rapid advancements in text, audio and video. Google's NotebookLM is a powerful research-support AI that can generate not only summaries of sources that we feed it, but also entire podcast epi...

Julia K. Dietmar, co-founder and CEO of OpenWardrobe in Redwood City, California USA sheds some light on the sustainability of the fashion industry, the issue with overproduction, its environmental impact and how we can shift towards circular economy. Julia has over 20 years of experience in retail tech, having been Chieft Product Officer at Vue.ai and worked in Walmart eCommerce, thredUP and Yaho...

Welcome to this Mini-Series on The Grand Challengers Podcast! The topic of generative artificial intelligence (AI) has been in all our minds over the past few years and is gaining even more momentum with rapid advancements in text, audio and video. Google's NotebookLM is a powerful research-support AI that can generate not only summaries of sources that we feed it, but also entire podcast epi...

Mats Larsson, Founder of the Global Energy Transformation (GET) Institute, based in southern Sweden, discusses what it takes to transition to global electrification using sustainable energy. We delve deep into how we can change our oil & gas mobility to more electric vehicles in light of the EU's impending ban on diesel and petrol cars and that it takes more than just technology to create...

Alma Schellart, Senior Lecturer in Water and Engineering at the University of Sheffield, England dives into the world of urban drainage, models and uncertainty and shows us how models and data can can make or break trust in the general public and why we need to be careful and meticulous with our use and communication of these. We discuss types of uncertainty that are encountered in infrastruture d...

Makoto Kern, Founder and Principal Design Consultant at iiimpact in Austin Texas USA dives deep into the world of UX (User Experience) Design and shows us how a user-centric approach to software is essential, especially in the disruptive AI landscape. We hear about how he and iiimpact have supported the environmental, resources and healthcare industries, future concerns about cybersecurity and how...

Rob Wreglesworth, Associate Ecologist and Innovation Lead at The Environment Bank, Co-Founder of No Longer Known and Host of the Innovate Eco Podcast, based in the UK, goes deep on biodiversity and conservation from both the economic and social lenses. We discuss topics like biodiversity net gain and nature credits, eDNA, current issues with conservation and how Rob is now targeting scarcity minds...

To celebrate 50 episodes of The Grand Challengers Podcast (main series), we return with another "Tables Turned" episode, this time featuring 26 questions from guests as early as Episode 2. Guests from across the show got to ask me a question of their choosing and I have compiled them into a special episode titled "Tables Turned". In this episode, I reflect on Switzerland, the i...

Nadja Kunz, Associate Professor at the School of Public Policy and Global Affairs, University of British Columbia (UBC), Canada shares her insights on the role of water in mining and the importance of critical minerals for the sustainable energy transition. Most notably, we gain insights into the complexity of the mining industry and its diverse and often forgotten stakeholders. What is required f...

Christoph Ort, Group Leader and Head of the Urban Water Maangement Department at the Swiss Federal Institute of Technology dives into the world of wastewater surveillance or wastewater-based epidemiology, techniques, intricacies, use-cases and the broader societal implications. We trace his journey in leading a "band" of disciplines in supporting society during a crisis moment, namely th...

Welcome to this Mini-Series on The Grand Challengers Podcast! The topic of generative artificial intelligence (AI) has been in all our minds over the past few years and is gaining even more momentum with rapid advancements in text, audio and video. Google recently released NotebookLM, a powerful research-support AI that can generate not only summaries of sources that we feed it, but also entire po...

Wei Shan Chen, also known as "Momo", Assistant Professor at Wageningen University shares his journey from Materials Engineering into the environment, from Taiwan to The Netherlands and from the Carbon Cycle to the Water Cycle. We discuss the issue of food waste and its broader implications among other approaches he has taken to recover carbon and close the loop. We also hear about Momo&a...

Welcome to this Mini-Series on The Grand Challengers Podcast! The topic of generative artificial intelligence (AI) has been in all our minds over the past few years and is gaining even more momentum with rapid advancements in text, audio and video. Google recently released NotebookLM, a powerful research-support AI that can generate not only summaries of sources that we feed it, but also entire po...

Mark Swinnerton, CEO of Green Gravity, shares his journey from metallurgy to mining operations and currently gravitational storage technology to support the energy transition. We get an in-depth look into how he is transforming the renewable energy storage industry and giving old mine shafts a new lease on life, an insight into the technology and logistics and how businesses are evolving in this n...