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PODCAST

The Impact Equation

Rafi Addlestone and Adam Pike

Welcome to The Impact Equation, conversations with leaders shaping a brighter future, hosted byAdamPike, social entrepreneur, and Rafi Addlestone, impact advisor,With our special guests, we unlock the secrets of those who dare to transform our world. We talk to architects of change, pioneers in their fields, working toward a brighter future for us all.In each episode, we dig into each element of the impact equation. Hosted on Acast. See acast.com/privacy for more information.

business entrepreneurship

All Episodes

35:50

Madlin Sadler: Delivering humanitarian relief across...

The Impact Equation ·

2026/03/29

What does it really take to deliver humanitarian aid in the world’s most fragile places? In this episode of The Impact Equation, we sit down with Madlin Sadler, Chief Operating Officer at the International Rescue Committee - an organisation working at the sharpest edge of conflict, disaster and displacement.Madlin offers a rare, inside view of what it means to operate in over 40 of the world’s most crisis-affected countries; where systems have broken down, need is accelerating, and resources are

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48:33

Edward Timpson: How 80 Foster Children Shaped a...

The Impact Equation ·

2026/03/22

Edward Timpson is the former Children’s Minister, part of the family behind Timpson, and brother of Lord James Timpson, now a Labour prisons minister. In this conversation with Rafi’s former Ministerial boss, Edward reflects on growing up in a family that fostered more than 80 children, alongside one of the UK’s best-known family businesses, recognised for both its high street services and a culture built on trust, kindness and second chances. That experience shaped everything that followed: family

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36:53

Luke Leslie: Investing in Myanmar Mangroves,...

The Impact Equation ·

2026/03/15

Luke Leslie is the co-founder and CEO of Key Carbon, investing directly into businesses generating high integrity carbon credits, from clean cooking stoves in sub-Saharan Africa to regenerative agriculture in Europe and mangrove restoration in Myanmar. Luke explains how Key Carbon has borrowed from royalty and streaming models used in mining, then adapted them for carbon markets. The result is a more hands-on and structured approach that is attracting hundreds of millions of dollars of institutional

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38:09

From fleeing Iran to the boardroom of British business

The Impact Equation ·

2026/03/08

In this episode, Rafi sits down with Claudine Blamey, Chief Sustainability Officer at Aviva. Claudine’s story starts far from the boardrooms of British business. She arrived in London from Tehran as a child, speaking no English. That experience shaped a mindset that has stayed with her throughout her career: nothing is forever, and even the most complex situations can be navigated. Three decades later, Claudine has helped shape sustainability strategy across sectors – from sustainable buildings at

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25:37

Summer Kennedy: Backing the world's best tech...

The Impact Equation ·

2026/03/04

This episode we're joined by Summer Kennedy for a special episode looking back at our first series with Fast Forward. In this series, we’ve featured three amazing entrepreneurs backed by Fast Forward, a trailblazing accelerator backing tech nonprofits solving urgent, global problems at scale.Summer quite literally drives Fast Forward forward; shaping the strategic vision and building the systems that get the organisation there. Her path to leadership has been anything but linear: from teaching first

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37:50

From Clarence House to the Rainforest

The Impact Equation ·

2026/03/01

This episode we're not joined by Ed Davey, the leader of the Liberal Democrats, but a pioneer on forests, agriculture and food security who has worked all over the world, from Tibet to Yemen and Colombia. With roots in social justice and anti-poverty campaigning, Ed cut his teeth in efforts around debt, poverty, and development with organisations like Oxfam and the wider Make Poverty History movement before joining the then Prince of Wales – now King – to drive high-level work on forests,

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51:03

Lord Simon Case: From Boris to Barrow

The Impact Equation ·

2026/02/22

Lord Simon Case served four British Prime Ministers as head of the UK's civil service from Boris Johnson in 2020, to Liz Truss, Rishi Sunak and Sir Keir Starmer. Lord Case held the most senior civil service role just as the government hit a run of shocks: Brexit implementation, Covid, war in Europe, economic turbulence, and rapid technological change. In this episode, he’s candid about what it feels like at the centre of crisis decision-making, and why government too often drifts into a

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39:55

Climate moonshots in Imperial's greenhouse

The Impact Equation ·

2026/02/15

Alyssa Gilbert sits in a rare seat in UK climate innovation: translating world-class science into ventures that can survive the messy reality of markets, regulation, pilots, and procurement. In this episode, Alyssa shares what Undaunted at Imperial College London looks for at the earliest stages, why credibility and communication matter as much as the tech, and what actually helps founders move from “tested in a lab” to “traction in the market”. We also get into the built environment:

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25:22

63 Up: From prosthetics in war zones to sitting at...

The Impact Equation ·

2026/02/11

Hosted on Acast. See acast.com/privacy for more information.

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32:53

Revolutionising prosthetics in the developing world

The Impact Equation ·

2026/02/08

This episode is the first in our series with Save the Children Global Ventures, the impact investment arm of Save the Children, backing bold entrepreneurs tackling some of the world’s toughest challenges. In the first episode of the series, we’re joined by Fred Carpinteiro, Founder and CEO of Amparo Prosthetics, a company reimagining prosthetic care for people with limb loss across the world. Amparo is delivering lifetime prosthetic care across 6 continents, using smart technologies to dramatically

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42:34

The Next Frontier of Investment

The Impact Equation ·

2026/02/01

In our latest episode of The Impact Equation, we’re joined by Dominic Hofstetter and Ivana Gezibeara from the Transcap Initiative, an NGO focused on developing and scaling systemic investing. Most of us start with a pool of capital and ask: what can this money do? Dominic and Ivana flip it: start with the challenge, diagnose the system, then “reprogramme” how money flows to multiple initiatives at once, so capital can actually shift outcomes, not just fund isolated projects. We talk about why

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35:06

From solar cells in India to gigantic carbon sponges,...

The Impact Equation ·

2026/01/25

In this episode, we go deep into chemistry and mining with Paul Needham, CEO of ARCA, a company using carbon mineralisation to turn mine waste into giant, permanent carbon sponges. In 2025, Arca signed a 10-year deal with Microsoft to remove 300,000 tonnes of carbon from the atmosphere.Certain rocks naturally react with CO₂, pulling it out of the air and locking it away forever as stone. ARCA has found a way to massively accelerate that natural process, transforming mining tailings from an

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37:53

The Builder, the Analyst & the Financier: Carbon...

The Impact Equation ·

2026/01/18

Carbon markets tend to trigger strong reactions. For some, they’re a vital bridge - a way to fund climate action at scale while the harder work of reducing emissions catches up. For others, they feel like a distraction, or worse, a way of outsourcing responsibility. So rather than arguing for or against them, we wanted to ask a different question: What would it take for carbon markets to actually work - with credibility and scale? In our latest Impact Equation roundtable, we brought together three

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45:37

Hans Stegeman, Chief Economist of Triodos Bank:...

The Impact Equation ·

2026/01/11

What if the way we think about money is fundamentally wrong? In our latest episode of The Impact Equation, Rafi and Adam sit down with Hans Stegeman, Chief Economist at Triodos Bank - one of the few banks where sustainability isn’t a bolt-on, but the organising principle. Hans’s central critique is this: we haven’t just chosen economic growth - we’ve hard-wired it into everything. Our markets, financial returns, debt system, pensions, and public budgets all depend on the assumption that the economy

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38:59

Elizabeth Boggs Davidsen, CEO, GSG Impact

The Impact Equation ·

2026/01/04

In this episode, GSG Impact CEO Elizabeth Boggs Davidsen joins the show to share her journey from being mentored by Madeleine Albright to leading global efforts in impact investing. Drawing on her formative years working in conflict zones like Sudan and Afghanistan, Elizabeth explains how those experiences shaped her belief that traditional aid isn't enough and that we need new models to drive change. She dives into her work pioneering a $1 billion "blended finance" fund in Latin America and her

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37:42

Gaia Vince, Journalist & Author, Nomad Century

The Impact Equation ·

2025/12/28

This podcast episode features Gaia Vince, a trailblazing journalist, broadcaster, and award-winning author, discussing the profound intersections of climate change and human migration. In this episode, Rafi explores Vince’s career shift from science journalism to documenting the "front lines" of our changing planet, culminating in the urgent thesis of her latest book, Nomad Century. You can buy her book here: https://amzn.to/49b8ltk Hosted on Acast. See acast.com/privacy for more information.

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28:48

56 Up: Rafi & Adam review the previous seven episodes

The Impact Equation ·

2025/12/24

Across the previous seven episodes of The Impact Equation, we spoke with Charlotte O'Leary, Nick Wise, Lucy Heller, Stephen Cowan, Lord Browne, participants in the Mining Roundtable, and Tiffany Yu, exploring how lasting impact is built at scale across finance, oceans, education, cities, energy, extractives, and disability rights. Together, these conversations examined the tension between idealism and pragmatism, showing how commercial rigour, financial ingenuity, and institutional design are

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47:26

Tiffany Yu, Founder & CEO, Diversability

The Impact Equation ·

2025/12/21

In this episode, Rafi is joined by Tiffany Yu—a fierce disability advocate, entrepreneur, and changemaker whose work is reshaping how the world understands disability. As the founder and CEO of Diversability, Tiffany has built a thriving global community empowering disabled voices and fostering real inclusion. From a life-changing injury in her childhood to becoming a powerful force on the global stage, including speaking at the World Economic Forum and authoring the groundbreaking book "The

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51:22

Can responsible mining accelerate the clean energy...

The Impact Equation ·

2025/12/14

This episode on The Impact Equation, we dive into one of the biggest tensions of the clean energy transition: the world wants an affordable, renewable future - yet achieving it requires a massive increase in critical minerals like copper, lithium, nickel and cobalt. So how do we mine what we need responsibly, safely and sustainably?To explore this, we bring together Ro Dhawan (CEO, ICMM), Kirsten Hund (Director of Climate & Nature, Vale Base Metals), and Professor Tim Biggs (Camborne School of

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45:19

Lord John Browne: From BP to investing in the enery...

The Impact Equation ·

2025/12/07

Lord John Browne was born just after the war in Hamburg to a Hungarian mother who survived Auschwitz and a British father who was a professional soldier. His parents met because his father needed an interpreter; she spoke six languages because, as she said, “in Hungary no one spoke your language, so you learned many.” From that unlikely beginning came a child who travelled the world, was pushed into self-sufficiency, and absorbed the lessons of survival, resilience, and ambition. From that

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80 results

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