The Grand Challengers Podcast

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 bent the curve far enough. Carbon keeps climbing. The ship is still heading for the iceberg, and we are busy bolting solar panels to the deck.
In this wide-ranging conversation, David takes Peter through the whole arc. A quick 101 on what actually makes a building green, from orientation and glazing to greywater and healthy materials. How LEED grew from a white paper into a global standard. And why he now argues we need to move from sustainability to regeneration, from human to humane, and build a new scoreboard he calls HOPE (Health On Planet Earth).
It is also a deeply personal story. A Stanford engineer who read Siddhartha every birthday and came to see himself as the ferryman. A developer who lost a building in the crash and went looking for purpose. A man who took up kung fu in his late fifties, fly fishes alone in cold creeks, and used AI as a thinking partner to turn 2,400 pages of dog-walk voice notes into his fourth book.
Chapters:
0:00 Intro
1:59 Guest Intro, Kung Fu & Fly Fishing
9:34 A 101 on Green Buildings…
16:11 ...and a 101 on the LEED System
18:45 Why study engineering?
20:40 Siddartha's Influence on David
26:43 Origins of the Green Building Movement
42:06 Green Buildings aren't enough
50:57 Pushing the needle and finding the correct metrics
1:01:37 A true Human-AI collaboration
1:10:07 David's Hope and Future Vision
1:12:14 Q&A Start
1:12:28 What does innovation mean to you?
1:15:28 Key Event, Book, Person
1:20:13 Time Management
1:24:58 Favourite childhood memory
1:27:57 Greatest Challenge to Date
1:33:04 Advice for young professionals
1:36:16 What would you most like to be remembered for?
1:37:01 Where can people find you?
1:38:42 Final Message
1:39:29 Outro
Detailed shownotes over at: petermbach.com/podcast for more in-depth information about each episode.
Join the community over at: linkedin.com/company/tgcpodcast and let's connect across the world!

Subscribe and listen to the podcast (and do please leave a review/rating) on Spotify, Apple Music, YouTube or wherever you get your podcasts from.
Your subscription/follow will greatly help the show grow and reach a wider audience.

Hosted by Peter Marcus Bach (www.petermbach.com), follow me on: 
X (fomerly Twitter): @petermbach 
Instagram: @petermbach87 
Subscribe to my channel on YouTube: www.youtube.com/c/PeterMarcusBach/

"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 district, and The Orbit, a radial reinvention of the Garden City for a transit-oriented future. He's also founder and CEO of Cumulus, an immersive digital memorialisation platform born from his father's brush with death during COVID. Across two decades, Alex has staked out a position that's part critique, part call to arms: that the condo towers crashing into Toronto's skyline are "spreadsheets in the sky", that greenwashed sustainability mandates have made architects pawns of capital, and that buildings should be "thousand-year worthy". 
In this conversation we trace Alex's nonlinear journey into architecture (the University of Waterloo, Rome with Massimiliano Fuksas, the AA in London which he dropped out of), the founding of PARTISANS in a Toronto storage locker, his master's thesis redesigning Mecca around a singularity, the Grotto Sauna's pre-fabricated arrival by barge, the disco ball that helped ignite the Hearn's cultural revival, and what it takes to design a "complete community" amid Canada's worst real estate downturn in a century. We also wrestle with AI in design ("it's just a tool, like a pencil"), the case for interfaith architecture as a path to peace, and how personal grief gave rise to Cumulus, his "digital tomb" for the family memories trapped on our devices. A spirited, irreverent and sometimes uncomfortable episode for anyone who builds, designs, or simply lives among buildings.
Chapters:
0:00 Intro
1:59 Guest Intro, Toronto & Tim Hortons
3:59 "Spreadsheets in the Sky”
9:40 A radical redesign of Mecca
15:01 Interfaith architecture for peace
17:59 Origins of the "Rebel Archtiect”
31:49 PARTISANS - the "Apple" story of Architecture?
37:25 The Grotto Sauna
38:57 Urban Regeneration - The Hearn
50:37 Building on the Garden City - The Orbit
57:15 Receptivity to radical ideas from the client's side
1:01:41 Real issues with 'sustainability' in architecture
1:12:12 Reflecting back on the why of pursuing architecture
1:19:43 The impact of AI in Architecture
1:23:04 The story of Cumulus - digital memorialization
1:43:00 Q&A Start
1:43:22 What does innovation mean to you?
1:44:24 Key event, book, person
1:47:19 Time Management
1:49:55 Favourite childhood memory
1:50:47 Biggest challenge to date
1:53:33 Advice for young professionals
1:55:19 What would you most like to be remembered for?
1:57:03 Where can people find you?
1:58:32 Final message
1:58:45 Outro
Detailed shownotes over at: petermbach.com/podcast for more in-depth information about each episode.
Join the community over at: linkedin.com/company/tgcpodcast and let's connect across the world!

Subscribe and listen to the podcast (and do please leave a review/rating) on Spotify, Apple Music, YouTube or wherever you get your podcasts from.
Your subscription/follow will greatly help the show grow and reach a wider audience.

Hosted by Peter Marcus Bach (www.petermbach.com), follow me on: 
X (fomerly Twitter): @petermbach 
Instagram: @petermbach87 
Subscribe to my channel on YouTube: www.youtube.com/c/PeterMarcusBach/

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's best seaside destinations, Jean-Christian shares the story behind Symbiosis Infinity Group, a consultancy he founded after spending more than two decades doing business in 30+ countries. After a year of looking inwards instead of outwards, he made a career pivot in his late forties to combine his international expertise with somatic breathwork practice and a model he calls Conscious Business Growth.
We unpack his trademarked Symbiosis Infinity Loop, a four-stakeholder framework inspired by symbiotic ecosystems in nature, designed to move companies beyond ESG box-ticking into hands-on circular supply chains. The conversation goes deep on a working case study from Cameroon, where Jean-Christian and his partners are helping cocoa cooperatives turn discarded cocoa husks (roughly 70-75% of the plant's weight) into nutrient sources, sustainable packaging materials, and biofuel feedstock, opening new revenue streams for farmers stuck with unsold beans amid a market crisis.
Beyond the business, we explore the daily practices that keep Jean-Christian grounded: somatic breathwork, box breathing, Stoic philosophy, an unwavering morning routine that begins with making the bed, and the kind of stillness that lets imagination return. He shares why "innovation at source" gives companies a competitive edge no R&D lab can replicate, why scaling a purpose-driven business sometimes means saying no to clients who only want to make money, and why, as he puts it, "your inner world dictates your outer world, not the opposite."
If you're interested in conscious business, the circular economy, breathwork, or finding your calling at any age, this one is worth your full attention.
Chapters:
0:00 Intro
1:59 Guest Intro, The Algarve & Breathwork
13:38 Jean-Christian's early career
19:56 Symbiosis Inifnity Group
21:59 What is Conscious Business Growth?
23:29 The supply chain of cocoa
33:28 The symbiosis infinity loop concept
40:21 Challenges for circularity and symbiosis
47:17 Learning and walking with the big players
51:57 A precautionary tale about scaling
1:00:16 Upcoming exciting projects for Jean-Christian
1:03:44 Q&A Start
1:04:03 What does innovation mean to you?
1:08:11 Key moment, book, person
1:13:08 Time Management
1:20:32 Favourite childhood memory
1:24:59 What would you most like to be remembered for?
1:26:41 Where can people find you?
1:28:30 Final Message
1:29:46 Outro
Detailed shownotes over at: petermbach.com/podcast for more in-depth information about each episode.
Join the community over at: linkedin.com/company/tgcpodcast and let's connect across the world!

Subscribe and listen to the podcast (and do please leave a review/rating) on Spotify, Apple Music, YouTube or wherever you get your podcasts from.
Your subscription/follow will greatly help the show grow and reach a wider audience.

Hosted by Peter Marcus Bach (www.petermbach.com), follow me on: 
X (fomerly Twitter): @petermbach 
Instagram: @petermbach87 
Subscribe to my channel on YouTube: www.youtube.com/c/PeterMarcusBach/

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 solutions (NBS) for the water sector. They begin where two self-confessed geeks should: David Lynch films, Resident Evil vs Silent Hill, and the perils of playing first-person horror games in bed next to a sleeping spouse.
From there, the conversation winds through Anacleto's serendipitous journey into engineering, a randomly chosen civil degree at Politecnico di Torino that ended, unexpectedly, in a PhD on methane emissions from paddy rice fields. He explains why Italy's rice country in Piedmont is a methane hotspot (with a vivid biological analogy you won't forget), and how a single review paper on treatment wetland modelling, read at the right moment, redirected his career toward nature-based wastewater treatment.
Treatment wetlands are the through-line of this episode: a quietly revolutionary technology that's been working for 30+ years, treats up to tens of thousands of population equivalent, and remains chronically misunderstood. We unpack what they actually are, why a few "Wild West" early failures in Italy still haunt the field.
The deeper thread is the academic-practitioner bridge. Treatment wetlands matured because practitioners went out and monitored real, full-scale systems, generating the unglamorous journal papers that lab-scale studies could never produce. He shares why "throwing your heart beyond the fence" (a wonderful Italian idiom for taking calculated risks) is the only way to escape the technological-readiness-level trap.
Recommended for anyone, whether engineer, researcher or nature enthusiast, curious about how nature does the dirty work better than concrete ever did.
Chapters:
0:00 Intro
1:59 Guest Intro, Cult Movies & Horror Games
7:47 Why Civil Engineering?
10:16 A PhD on "rice flatulence”
14:48 Adding treatment wetlands to the mix
19:06 A 101 on Treatment Wetlands
37:17 The terminology discussion and IRIDRA
51:42 IRIDRA's Projects & Global Wetland Technology
56:46 General receptivity of NbS in Italy
1:03:08 Some exciting things Anacleto is embarking on
1:07:15 Q&A Start
1:07:26 What does innovation mean to you?
1:08:30 Key event, book, person
1:09:51 Time Management
1:12:46 Favourite childhood memory
1:13:45 Greatest challenge to date
1:15:25 Advice for young professionals
1:18:03 What would you most like to be remembered for?
1:20:11 Where can people find you?
1:20:58 Final message
1:21:19 Outro
Detailed shownotes over at: petermbach.com/podcast for more in-depth information about each episode.
Join the community over at: linkedin.com/company/tgcpodcast and let's connect across the world!

Subscribe and listen to the podcast (and do please leave a review/rating) on Spotify, Apple Music, YouTube or wherever you get your podcasts from.
Your subscription/follow will greatly help the show grow and reach a wider audience.

Hosted by Peter Marcus Bach (www.petermbach.com), follow me on: 
X (fomerly Twitter): @petermbach 
Instagram: @petermbach87 
Subscribe to my channel on YouTube: www.youtube.com/c/PeterMarcusBach/

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 usually the ground beneath your feet.
In this episode, we are joined by Richard C. Tyson environmental consultant, entrepreneur, speaker and Founder of Eco Systems for a global conversation about circular economy, waste management and the business case for sustainability. Richard's career has taken him from the Caribbean to the UK and now Bangkok, Thailand, and his perspective carries the practical clarity of someone who has worked inside government, the private sector and international consulting.
The episode traces Richard's journey from Cayman's coral reefs to roles in environmental health, solid waste management and sustainable tourism within the Cayman Islands Government, and finally to founding his own consultancy. It digs into why SIDS are both the most vulnerable to climate change and among the most innovative incubators for circular thinking, why waste is better understood as "resources in the wrong place," how the circular economy evolved into today's corporate strategy, and what it actually takes to shift a business from linear to circular.
Richard also demystifies the world of sustainability certifications, explaining why a standardised, audited approach beats well-intentioned recycling programs every time, how certifications act as a shield against greenwashing, and why educating businesses is often more important than certifying them. How do you build an environmental consultancy from scratch and why does Richard believe that sustainability and technology are the only two real frontiers of innovation today? Tune in for a grounded, globally-minded conversation about the future of resources, small islands and sustainable business.
Chapters:
0:00 Intro
1:59 Guest Intro & Life Across Continents
5:13 The Cayman Islands
10:05 A 101 on Small Island Developing States (SIDS)
15:59 The waste management challenge
19:39 Circular Economy
23:05 Richard's jump from Cayman to Thailand
27:41 Richard's Business Eco Systems
32:51 Environmental certifications - worth it?
41:00 Reflecting on Entrepreneurship
43:54 Overcoming the dangers of 'greenwashing’
48:47 Near-future plans for EcoSystems and Richard
50:55 Q&A Start
51:15 What does innovation mean to you?
52:08 Key Moment, Person, Event
52:54 Time Management
55:14 Favourite childhood memory
56:26 Greatest challenge to date
1:00:27 Advice for young professionals
1:02:14 What would you most like to be rememered for?
1:03:00 Where can people find you?
1:04:01 Final Message
1:04:31 Outro
Detailed shownotes over at: petermbach.com/podcast for more in-depth information about each episode.
Join the community over at: linkedin.com/company/tgcpodcast and let's connect across the world!

Subscribe and listen to the podcast (and do please leave a review/rating) on Spotify, Apple Music, YouTube or wherever you get your podcasts from.
Your subscription/follow will greatly help the show grow and reach a wider audience.

Hosted by Peter Marcus Bach (www.petermbach.com), follow me on: 
X (fomerly Twitter): @petermbach 
Instagram: @petermbach87 
Subscribe to my channel on YouTube: www.youtube.com/c/PeterMarcusBach/