The Stream (with Will & Tom)
Episodes
The Aspect National Water Strategy – Prof. Newsha Ajami on water security as a cornerstone of the US economy
19 Feb 2026
Contributed by Lukas
Closing out this season on water and nature, in this episode, we welcomed Professor Newsha Ajami, the Chief Development Officer for Research at the Ea...
18,000 oysters & counting – Prof. Fiona Regan on restoring nature’s super filters and eDNA
29 Jan 2026
Contributed by Lukas
In this episode, Will and Tom welcomed Professor Fiona Regan, founder & director of the DCU Water Institute, which recently celebrated its 10-year...
Building the world’s first biodiversity venture fund – Tom Quigley, Superorganism
15 Jan 2026
Contributed by Lukas
In this episode of The Stream, Will Sarni and Tom Freyberg sit down with Tom Quigley, Co-Founder and Managing Director of Superorganism, the first ven...
The Latin American iceman - Sebastián Goldschmidt on restoring ice reserves and ecosystems
08 Jan 2026
Contributed by Lukas
In this episode of The Stream, Will Sarni and Tom Freyberg are joined by Sebastián Goldschmidt, founder of Nilus, to explore an unexpected climate so...
Taking on PFAS (forever chemicals) with synthetic biology – Nicole Richards
09 Oct 2025
Contributed by Lukas
In this episode, we welcomed Nicole Richards, CEO of US firm Allonnia, a company that promises to enzymes and microbes to degrade environmental contam...
Galvanizing climate solutions – Ida Hempel on water investments and her time at Tesla
18 Sep 2025
Contributed by Lukas
How do you invest $1 billion dollars to accelerate climate and water solutions? 🌍In this episode of The Stream Podcast, we speak with Ida Hempel fr...
Planting 12.5 million trees and counting – Earthshot winner Florent Kaiser on local water stewardship in Latin America
28 Aug 2025
Contributed by Lukas
How do you plant 12.5 million trees and mobilise over 40,000 local and Indigenous people across six South American countries? 🌎In this episode of T...
Building a stock exchange for nature recovery – Guy Thompson
14 Aug 2025
Contributed by Lukas
Season 9 kicks off with a deep dive into nature finance, water, and market innovation, with Guy Thompson, MD at EnTrade.After more than a decade advis...
Voices of Regeneration: Founders Driving Innovation
25 Jul 2025
Contributed by Lukas
This special episode of The Stream takes you inside Northumbrian Water’s Innovation Festival 2025, where this year’s theme, Regeneration, inspired...
Pickleball, political headwinds and reflecting on water ‘Legends’ – Brendan Tierney
09 May 2025
Contributed by Lukas
In this episode, we closed the season with Brendan Tierney, the head of water and wastewater and Raymond James.Brendan joined us to catch up on a whol...
California’s ‘water czar’ - Felicia Marcus on the LA fires and creating resilience in uncertain times
28 Apr 2025
Contributed by Lukas
In this latest episode we were delighted to welcome water policy expert Felicia Marcus, a fellow at the National Academy of Public Administration and ...
From FIG to FIGS – Usha Rao-Monari on water economics and the need to make flexible financing work
26 Apr 2025
Contributed by Lukas
Former UN Under-Secretary-General Usha Rao-Monari joins The Stream to explore why blended finance isn’t working for water, lessons from the energy s...
From FIG to FIGS – Usha Rao-Monari on water economics and the need to make flexible financing work
11 Apr 2025
Contributed by Lukas
Former UN Under-Secretary-General Usha Rao-Monari joins The Stream to explore why blended finance isn’t working for water, lessons from the energy s...
Reasons for hope and climate optimism – Dr Peter Gleick on the three ages of water
30 Jan 2025
Contributed by Lukas
We were delighted to welcome Dr Peter Gleick, a leading scientist, innovator and communicator on water and climate issues.He founded the Pacific Insti...
Building & selling a water software company for $1 billion – Colby Manwaring on life after the exit
16 Jan 2025
Contributed by Lukas
On this episode of The Stream podcast, Will and Tom are joined by the brilliant Colby Manwaring, the former CEO of Innovyse, the chair of Envirosuite ...
From ‘idealistic professor’ to water tech titan - Dr Andrew Benedek
02 Jan 2025
Contributed by Lukas
On the third episode of The Stream, Will and Tom were delighted to welcome Dr Andrew Benedek. He was the very first winner of the Lee Kuan Yew Prize, ...
Water and digital convergence – hydroinformatics leader Professor Dragan Savić
12 Dec 2024
Contributed by Lukas
This week on The Stream, Will and Tom are joined by the incredible Professor Dragan Savić, a legend when it comes to the intersection of water and di...
22 years driving water industry analysis and intelligence - industry torchbearer Christopher Gasson
28 Nov 2024
Contributed by Lukas
It's time to celebrate the ‘Legends’ of water. 🎙️🌊We are delighted to kickstart the season with this first episode, which welcomes Ch...
Investing into ag-tech innovations and farmland with agronomist Baptiste Tellier | The Stream with Will and Tom
01 Aug 2024
Contributed by Lukas
In the latest episode of the season, we were delighted to be joined by Baptiste Tellier, the managing director of Fall Line Capital who is focused on ...
40 years of catalysing agricultural innovation with Nebraskan farmer, Roric Paulman
11 Jul 2024
Contributed by Lukas
In this second episode of the season we’re joined by Roric Paulman, a Nebraskan farmer and also chair of the Nebraskan Water Balance Alliance, an or...
The bright lights of vertical farming and water savings with Noah Zelkind, 80 Acres Farms
26 Jun 2024
Contributed by Lukas
For the fourth episode of the season, Tom and Will are joined by Noah Zelkind, VP of Business Intelligence, at 80 Acres Farms.Noah talks about his bac...
Understanding farmers’ water challenges and scaling innovative business models with Kilimo’s Jairo Trad S7 Ep.3
13 Jun 2024
Contributed by Lukas
For the third episode of the season, Tom and Will are joined by Jairo Trad, Co-Founder & CEO of Kilimo.In this episode he talks about how he spent...
Soil health, why it matters and the impact on water with MyLand’s Dane Hague | S7 Ep.2
28 May 2024
Contributed by Lukas
In this second episode of the season, we’re joined by Dane Hague, CEO & Co-Founder of MyLand.Dane openly shares his origin story, moving from a ...
Water stewardship and regenerative agriculture with Diageo’s Michael Alexander | S7 Ep.1
15 May 2024
Contributed by Lukas
In this first episode of the season we’re joined by Michael Alexander, head of environment for Diageo, the British multinational alcoholic beverage ...
4th Generation Ranching and liquid gold with Jerry Gunderson | S6 Ep.5
18 Oct 2023
Contributed by Lukas
In the final episode of The Stream season 6, Will and Tom are joined by Jerry Gunderson, a 4th generation rancher and businessman from Colorado.It was...
Hats off to rancher-turned-water policy guru James Eklund on the ‘Law of the River’ | S6 Ep.4
15 Aug 2023
Contributed by Lukas
This week Will and Tom are joined by James Eklund, Water & Natural Resources Practice Lead, Sherman & Howard. Known as the architect of Colora...
Catalysing first movers in the decentralised water evolution with Newsha Ajami | S6 Ep.3
15 Aug 2023
Contributed by Lukas
In this episode, Will and Tom are joined by Newsha Ajami, Chief Development Officer for Research, Earth & Environmental Sciences Area, Berkeley La...
Greywater reuse and beer with Aaron Tartakovsky | S6 Ep.2
07 Aug 2023
Contributed by Lukas
In this episode, Will and Tom are joined by Aaron Tartakovsky, co-founder and CEO of Epic Cleantec. He talks about the company genesis, and going bac...
Building a future-proof utility in the desert with Dave Johnson | S6 Ep.1
18 Jul 2023
Contributed by Lukas
In this episode, Will and Tom are joined by Dave who gives context on Southern Nevada, providing water in the desert and meeting the needs of a popula...
Sustainability legend John Elkington on the triple bottom line | S5 Ep.10
23 Mar 2023
Contributed by Lukas
We've been looking forward to this one...This week, Will and Tom are joined by one of the founders of the sustainability movement, the great John...
Building the Netflix of beverages with Manuela Zoninsine | S5 Ep.9
09 Mar 2023
Contributed by Lukas
This week on #TheStream, Will and Tom are joined by Manuela Zoninsine, CEO & Founder of Kadeya, a closed-loop water vending service powered by dig...
Water, whisky & Greta – realising water’s value with John Matthews | S5 Ep.8
23 Feb 2023
Contributed by Lukas
This week, John Matthews, Executive Director at Alliance for Global Water Adaptation (AGWA), joins Will Sarni & Tom Freyberg to #TheStream to talk...
From Wall Street to Water: Investment trends with Brendan Tierney | S5 Ep.7
09 Feb 2023
Contributed by Lukas
In this week’s episode, Will and Tom were delighted to be joined by Brendan Tierney, Managing Director and Head of Global Water Practice at Raymond ...
Crafting culture in a digital start-up with Meena Sankaran | S5 Ep.6
26 Jan 2023
Contributed by Lukas
This week, Will and Tom, are delighted to be joined by Meena Sankaran, Founder & CEO Ketos, a vertically integrated water quality and monitoring p...
Rethinking the urban water dilemma with architect Karina Peña | S5 Ep.5
12 Jan 2023
Contributed by Lukas
This week, Will and Tom were delighted to be joined by Karina Peña, Co-founder & CEO of Dutch start-up, Field Factors.Karina talks about her orig...
Chatting with green business guru Joel Makower | S5 Ep.4
21 Dec 2022
Contributed by Lukas
Episode four of the Stream is now live! This week Will and Tom are delighted to be joined by one and only Joel Makower, chairman and founder of Green...
Upskilling water’s workforce through ‘living laboratories’ | S5 Ep.3
08 Dec 2022
Contributed by Lukas
This week, Melissa Meeker, CEO of The Water Tower, joins Will Sarni and Tom Freyberg to talk about her 25 years of experience in water resources manag...
Helping Santa Monica become water self sufficient with Sunny Wang | S5 Ep.2
24 Nov 2022
Contributed by Lukas
This week on #TheStream, Will and Tom are joined by the incredible Sunny Wang, Water Resources Manager at City of Santa Monica. Sunny talks about his...
The role of AI in water with Victoria Edwards | S5 Ep.1
10 Nov 2022
Contributed by Lukas
We are back! And kicking off Season Five of The Stream, Will and Tom are joined by Victoria Edwards, Founder & CEO of Fido Tech.In the next 40 min...
Rethinking California's water strategy with Mohsen Mortada | The Stream on the road
29 Sep 2022
Contributed by Lukas
In this special mini-season, before we kick off season 5, Will and Tom pack their bags and head to WEX Global 2022 in Valencia to chat with four speci...
Green exaggeration with Sanmit Ahuja | The Stream on the road
15 Sep 2022
Contributed by Lukas
n this special mini-season, before we kick off season 5, Will and Tom pack their bags and head to WEX Global 2022 in Valencia to chat with four specia...
Czech-ing in with Pavel Policar, the "water butcher" | The Stream on the road
15 Sep 2022
Contributed by Lukas
In this special mini-season, before we kick off season 5, Will and Tom pack their bags and head to WEX Global 2022 in Valencia to chat with four speci...
Driving down Jamaica's water losses with Mark Barnett | The Stream on the road
07 Sep 2022
Contributed by Lukas
In this special mini-season, before we kick off season 5, Will and Tom pack their bags and head to WEX Global 2022 in Valencia to chat with four speci...
Overcoming apathy to water to achieve the SDGs with Dr Patrick Moriarty | S4 Ep.11
22 Jun 2022
Contributed by Lukas
It's the season finale and joining Will and Tom this week is Dr Patrick Moriarty, CEO of think-tank IRC.A civil engineer and expert in water re...
Cascading innovation across multinationals with Carolina Garcia Arbelaez | S4 Ep10
01 Jun 2022
Contributed by Lukas
This week, Carolina Garcia Arbelaez, Global Sustainability and Innovation Director at Anheuser-Busch InBev, joins Will Sarni and Tom Freyberg to talk ...
Finding the right water investment with Avent Bezuidenhoudt | S4 Ep.9
11 May 2022
Contributed by Lukas
This week, Avent Bezuidenhoudt, Head of investment at Earth Capital joins Will and Tom to talk about being new to the world of water, the ‘Cinderell...
Democratising real-time flood data with Bessie Schwarz | S4 Ep.8
27 Apr 2022
Contributed by Lukas
This week, Bessie Schwarz, Co-founder & CEO, Cloud to Street, joins Will Sarni and Tom Freyberg to talk about democratising real-time flooding dat...
Rethinking urban water solutions with Professor Newsha Ajami | S4 Ep.7
14 Apr 2022
Contributed by Lukas
This week, Professor Newsha Ajami, chief development officer for research, Berkeley Lab's EESA, joins Will Sarni and Tom Freyberg to talk about d...
ESG, water and first adopters with Nate Allen | S4 Ep.6
30 Mar 2022
Contributed by Lukas
This week, Nate Allen, the executive director of WaterStart, joins Will and Tom to talk about how, to date, the non-profit company has helped to facil...
Disrupting engineering design with Ari Raivetz | S4 Ep.5
16 Mar 2022
Contributed by Lukas
This week Ari Raivetz, chairman and CEO of Transcend, joins Will and Tom to talk about his origin story and how it threw him into the world of water. ...
Shaping in-building water efficiency with Alex McCormack | The Stream S4 EP.4
02 Mar 2022
Contributed by Lukas
This week, Alex McCormack, founder & CEO of Shayp from Belgium, joins Will and Tom to talk about Alex's mission to improve water efficiency i...
The edge effect on digital, diversity and young professionals with Emma Weisbord | The Stream S4 Ep.3
17 Feb 2022
Contributed by Lukas
This week, Emma Weisbord, partnerships lead at Royal HaskoningDHV Digital, joins Will Sarni & Tom Freyberg for a belated birthday chat! Listen to...
Disrupting the urban water landscape with Erin Rothman | S4 EP.2
03 Feb 2022
Contributed by Lukas
In this week’s episode, Will & Tom are joined by Erin Rothman, the founder & CEO of US-start up, StormSensor.Listen to Erin talk about: Sca...
Leading the air to water movement with Cody Friesen | S4 EP.1
20 Jan 2022
Contributed by Lukas
We're back! In this week’s episode, Will & Tom are joined by Cody Friesen, the founder of Source - the poster child of the atmospheric w...
S3 Ep.10 It’s all about the people with Dr Reinhard Hübner, CEO, SKion Water
04 Nov 2021
Contributed by Lukas
This week, Dr. Reinhard Hübner, CEO of SKion Water, joins Will Sarni and Tom Freyberg for the Season three finale, in the next 30 minutes discover......
S3 EP.9 Leading the hydration revolution with Pierandrea Quarta
20 Oct 2021
Contributed by Lukas
This week, Pierandrea Quarta, CEO & Founder of REBO, joins Will Sarni and Tom Freyberg to talk about Pierandrea's decade of experience at the...
S3 Ep.8 A walk in the woods with Dr. Piers Clark
06 Oct 2021
Contributed by Lukas
This week, Dr. Piers Clark, founder & chairman of Isle Utilities takes Will and Tom on a walk in the woods, his woods we should say! Piers tells ...
S3 Ep.7 Space, STEM education & water with John Etgen & Ricky Arnold
22 Sep 2021
Contributed by Lukas
This week, John Etgen, the CEO of the Project Wet Foundation, and Ricky Arnold, NASA Astronaut and director of STEM engagement at the University of ...
S3 Ep.6 Closing the water GAP with Lisa Hook
14 Sep 2021
Contributed by Lukas
This week, Lisa Hook, senior manager for environmental & product sustainability at GAP Inc. joins Will Sarni and Tom Freyberg to talk about her wa...
S3 Ep. 5 Supersizing water's value with Ian Olson, McDonald's
25 Aug 2021
Contributed by Lukas
Ian Olson, the senior director of global sustainability at McDonald’s, joins Will and Tom this week to talk about his background in economics and as...
S3 Ep.4 Innovation and Utility Culture with Angela MacOscar
10 Aug 2021
Contributed by Lukas
This week, Dr Angela MacOscar, Head of Innovation at Northumbrian Water Group (NWG) joins Will Sarni and Tom Freyberg to talk about the Innovation Fes...
S3 Ep.3 Filling the Data Gaps on Water Poverty with Sera Young
28 Jul 2021
Contributed by Lukas
This week, Sera Young, Associate Professor, Anthropology & Global Health, Northwestern University joins Will Sarni & Tom Freyberg to talk abou...
S3 Ep.2 Creating the 50 litre home with Frantz Beznik
14 Jul 2021
Contributed by Lukas
This week, Frantz Beznik, Senior Director for Sustainable Innovation, Procter & Gamble and founder of the 50L Home Coalition, joins Will and Tom t...
S3 Ep.1 Scaling a start-up on lead detection in water with Ari Kaufman
30 Jun 2021
Contributed by Lukas
We're back! In this week’s episode, Will and Tom are joined by Ari Kaufman, Founder & CEO of Spout, who talks about his serial entrepreneu...
Ep 10: Social Entrepreneurship [+SGDs] with Madeleine Bell
19 May 2021
Contributed by Lukas
In this week’s episode Madeleine Bell, Head of Strategy and special projects at Desolenator, joins Will Sarni & Tom Freyberg to talk about wha...
Ep 9: Solving wicked problems with catalytic communities with Tom Higley
05 May 2021
Contributed by Lukas
In this week’s episode, Tom Higley, serial entrepreneur and Founder & CEO of X Genesis, joins Will Sarni & Tom Freyberg to talk about why en...
Ep 8: Calling time on water’s echo chamber with Alexander Crowell
22 Apr 2021
Contributed by Lukas
In this week’s episode, Alex Crowell, managing director of PureTerra Ventures, joins Will and Tom to talk about the company’s investment team that...
Ep 7: Racing to global water access with Eleanor Allen
06 Apr 2021
Contributed by Lukas
In this week’s episode, Eleanor Allen, CEO of the charity Water for People, joins Will Sarni & Tom Freyberg to talk about her ultra-cycling bug ...
Ep 6: Rock 'n' rolll and digital twins with Mark Kaney
24 Mar 2021
Contributed by Lukas
In this week’s episode, Mark Kaney, the director of asset management at Binnies, joins Will & Tom to talk about his journey as a semi-profession...
Ep 5: Water. Paddleboarding. Innovation with Fiona Regan
10 Mar 2021
Contributed by Lukas
In this week’s episode, Fiona Regan, a professor in chemistry at Dublin City University and director of the DCU Water Institute, joins Will & To...
Ep 4: Mental wellbeing and mountain biking with Damian Wells
24 Feb 2021
Contributed by Lukas
In this week’s episode, Damian Wells, Managing Director of Australian water utility at Coliban Water, joins Will & Tom to talk about how Damian ...
Ep 3: Water footprints and Captain Planet with Ioana Dobrescu
10 Feb 2021
Contributed by Lukas
Ioana Dobrescu, from Water Footprint Implementation, joins Will and Tom this week on The Stream to talk about how her childhood love for Captain Plane...
Ep 2: Digitally mapping the world with Dr Chris Fisher
27 Jan 2021
Contributed by Lukas
Dr Chris Fisher, Founder and Director of the Earth Archive and Archaeologist, joins Will Sarni and Tom Freyberg to discuss the critical work his compa...
Ep 1: Hydrow's interactive water partnership with Sera Moon
13 Jan 2021
Contributed by Lukas
Sera Moon, a Professional Rower at Hydrow, kicks off season two of the Stream with Will Sarni and Tom Freyberg to talk about an interactive partnershi...
Ep 17: Sheds, Shirts and Sturgeons with Stuart Orr
09 Dec 2020
Contributed by Lukas
Stuart Orr, Practice Lead at Freshwater, WWF, joins Will Sarni and Tom Freyberg from the comfort of his shed for the series finale of The Stream to ta...
Ep 16: Innovation and ukuleles in the Philippines with Yang Villa
25 Nov 2020
Contributed by Lukas
Yang Villa, the Head of the Philippines, Isle Utilities, sits down with Will Sarni and Tom Freyberg to discuss innovation in both the public and priva...
Ep 15: Innovation, unreasonable people & PFAS with Tali Harif
11 Nov 2020
Contributed by Lukas
Tali Harif, the Chief Commercial Officer at Puraffinity, joins Will Sarni and Tom Freyberg to talk about the importance of diversity in pushing throug...
Ep 14: Crowdfunding water innovations and chicken dinners with Lon Johnson
28 Oct 2020
Contributed by Lukas
Lon Johnson, the founder & CEO of WaterWorks, joins Will Sarni and Tom Freyberg to talk about how his background in American politics helped him i...
Ep 13: Urban water innovation, dogs & TikTok with Kelly Trott
15 Oct 2020
Contributed by Lukas
Kelly Trott, the VP of deployment & impact for Imagine H2O, joins Will Sarni and Tom Freyberg to talk about the Urban Water Challenge and overall ...
Ep 12: Music, memories & Zimbabwe’s water challenges
23 Sep 2020
Contributed by Lukas
Lumbie Mlambo and Rachel Svetanoff from JB Dondolo join Will Sarni and Tom Freyberg to discuss how the charity is helping to solve water challenges in...
Ep 11: Water enterprise & innovation in Ghana with Jacob Amengor
08 Sep 2020
Contributed by Lukas
Jacob Amengor, Co-Founder of iWASH Africa, joins Will Sarni and Tom Freyberg to discuss challenges in Ghana's water sector and the need for innov...
Ep 10: The 100+ Sustainability Accelerator with Andre Fourie
26 Aug 2020
Contributed by Lukas
Andre Fourie, Global Director: Water Sustainability at Anheuser-Busch InBev (ABI) joins Will Sarni and Tom Freyberg to discuss the 100+ Sustainability...
Ep 9: Water Stewardship (and the braai) with David Grant
11 Aug 2020
Contributed by Lukas
David Grant, director of global water stewardship at PepsiCo joins Will Sarni and Tom Freyberg to discuss the changing nature of water stewardship. He...
Ep 8: Smarter agricultural water trading with Richael Young
28 Jul 2020
Contributed by Lukas
Richael Young, co-founder and CEO of Mammoth Water joins Will Sarni and Tom Freyberg to discuss the need for disruption in agricultural water trading ...
Ep 7: Vertical farming, water and Pitbull with Mike Zelkind
15 Jul 2020
Contributed by Lukas
Mike Zelkind, co-founder and CEO of 80 Acres Farms joins Will Sarni and Tom Freyberg to discuss the rise in vertical/urban farming leading to a food r...
Ep 6: Four water tech trends with Imran Jaferey
30 Jun 2020
Contributed by Lukas
Water technology expert Imran Jaferey joins Will Sarni and Tom Freyberg to discuss four major water trends, including: atmospheric water generation, s...
Ep 5: How we got into water (+bow ties and treadmills) with Jon Grant
17 Jun 2020
Contributed by Lukas
In a walking, talking interview special, Jon Grant, principal at Jon Grant Water Consulting joins Will Sarni and Tom Freyberg to talk about making wat...
Ep 4: Artificial intelligence (AI) in water with Prateek Joshi
02 Jun 2020
Contributed by Lukas
Prateek Joshi, founder and CEO of Plutoshift joins Will Sarni and Tom Freyberg on The Stream to talk all things artificial intelligence (AI).He discus...
Ep 3: Blockchain and water trading with Katrina Donaghy
20 May 2020
Contributed by Lukas
Katrina Donaghy, co-founder and CEO of Civic Ledger joins Will Sarni and Tom Freyberg as the first guest on The Stream. The trio discuss how blockchai...
Ep 2: Digital water, data privacy and martinis
05 May 2020
Contributed by Lukas
Will Sarni and Tom Freyberg discuss the digital transformation of water, accelerated by the pandemic, along with data privacy and martinis.🔔 We h...
Pilot: Nature's reboot, flannel shirts & why 'The Stream'
20 Apr 2020
Contributed by Lukas
Will Sarni and Tom Freyberg kick-start a new entertaining podcast series, waxing lyrical about the critical role of water and technology during the Co...