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 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
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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

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 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 of urban critical infrastructure. Drawing on her RV-DSS (Resilience and Vulnerability-informed Decision Support System), Maryam reveals how a single flood can trigger chain reactions across water networks, power substations and railways and why "shared interventions" between operators could dramatically improve recovery.

Maryam's story goes beyond infrastructure models. From childhood Lego building in Iran to a black belt in taekwondo, from running her own engineering firm to finding her calling in water research at Exeter's Centre for Water Systems, her journey is one of exploration, setbacks and reinvention. After losing her brother in a motorcycle accident, she found liberation by facing that fear... a personal resilience story that mirrors the engineering resilience she studies.

The conversation expands into nature-based solutions and sustainable drainage systems (SuDS), and how they can strengthen urban resilience. Maryam shares insights from Brazil, India and the UK, comparing how the Global North and South approach climate adaptation and drainage planning. She argues that while SuDS are increasingly recognised as critical infrastructure, we lack evidence about their long-term performance and her SuDS Health Monitoring research aims to change that.

Chapters:
0:00 Intro
1:59 Guest Intro & Action Hobbies
12:47 Lego inspired a start in structural engineering
19:00 From structure to water, from CEO to researcher
25:27 Unpacking Resilience & Interdependency and the RVDSS
35:52 What is infrastructure resilience?
45:02 The NbS Terminology discussion
47:25 Maryam's international NbS Research
56:29 NbS as Critical Infrastructure - what about resilience?
1:00:12 UK, Brazil, India comparison in terms of NbS
1:05:02 The key lesson for Global North-South learning
1:06:33 Maryam's future plans
1:09:05 Q&A Start
1:09:24 What does innovation mean to you?
1:11:32 Key event, book person
1:13:57 Time Management
1:17:23 Favourite childhood memory
1:18:30 Biggest challenge to date
1:21:19 Advice for young professionals
1:23:24 What would you most like to be remembered for?
1:24:36 Where can people find you?
1:25:04 Final message
1:27:41 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/