Cleaning Up: Leadership in an Age of Climate Change

Michael Liebreich, Bryony Worthington
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Once a week, Michael Liebreich and Bryony Worthington have a conversation with a leader in clean energy, mobility, climate finance or sustainable development. Informative, inspiring and fun!

  1. ⁠Is Africa Poised To Be A Clean Energy Powerhouse? Ep241: Clemens Calice

    2D AGO

    ⁠Is Africa Poised To Be A Clean Energy Powerhouse? Ep241: Clemens Calice

    Why does Africa, home to 18% of the world’s population, receive just 1% of global energy investment? What’s stopping money from flowing to the continent when it has such good wind and solar potential? And what would it take to unlock an energy boom that benefits both Africa and Europe? Spread across 54 countries and with a combined GDP the size of Italy, Africa's population is young and growing rapidly. It is set to grow from 1.5 billion people today to 2.5 billion by 2050. And it could reach 4 billion by 2100, accounting for two out of every five people on the planet.  Africans want and deserve the same prosperity shared by richer parts of the world. And that means investment. So why is investment not flowing?  This week on Cleaning Up, Michael Liebreich speaks with Clemens Calice, CEO and founder of Cygnum Capital, which invests around $1.3 billion in Africa’s energy transition. Together they explore why risk perception and outdated models are slowing investment across Africa.  From rooftop solar for factories and mines, to electric motorbikes, power pools, and the geopolitics of gas, this episode makes the pragmatic case for how Africa can leapfrog to a cleaner, more resilient energy future. Leadership Circle: Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Cygnum Capital, Davidson Kempner, EcoPragma Capital, EDP, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live. Discover more: Cygnum Capital: https://www.cygnumcapital.comEpisode 196, Lucy Heintz of Actis: https://www.youtube.com/watch?v=nhGDI_0QIHgEpisode 216, Daniel Calderon of Alcazar Energy: https://www.youtube.com/watch?v=WMhFOWO4C84Episode 120, Ana Hajduka, founder of Africa Green Co.: https://www.youtube.com/watch?v=ktWh_G6Sw_g

    59 min
  2. Climate Action vs Cost of Living: Can We Do Both? | Ep240: Katie White, UK Climate Minister

    JAN 14

    Climate Action vs Cost of Living: Can We Do Both? | Ep240: Katie White, UK Climate Minister

    How do we build a clean energy system while bringing UK bills down? Can the UK’s landmark Climate Change Act stand up to a fractured climate politics? And does increasing global instability make home-grown energy more important than ever? This week’s episode of Cleaning Up comes to you from inside of the UK’s Department for Energy Security and Net Zero, where last week Bryony Worthington sat down with Katie White MP, the UK’s recently appointed Climate Minister, to discuss her new role, what she’s excited about, and current challenges that she’s facing. Katie and Bryony met more than 20 years ago when they worked together at Friends of the Earth on the campaign for the Climate Change Act. In her new role, Katie is now the minister responsible for carbon budgets and net zero, alongside other climate priorities. It was only 12 months after she was elected as an MP for Leeds North West that Katie was promoted Climate Minister, in what she’s described as her dream job. From their shared history campaigning for the Climate Change Act to today’s challenges of energy affordability, electrification and public consent, Katie and Bryony unpack what’s working, what isn’t, and how to connect climate action to lower bills, stronger security and a better quality of life. Leadership Circle: Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Cygnum Capital, Davidson Kempner, EcoPragma Capital, EDP, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live. Discover more: Katie White biography and brief: https://www.gov.uk/government/people/katie-whiteKatie White’s constituency website: https://katiewhitemp.org.uk/

    57 min
  3. Trump, Venezuela & The Future Of Clean Energy | Ep239: Michael Liebreich & Bryony Worthington

    JAN 7

    Trump, Venezuela & The Future Of Clean Energy | Ep239: Michael Liebreich & Bryony Worthington

    Is the link between oil and geopolitics starting to diminish? Has climate consensus fractured just as clean energy hits escape velocity? And are batteries, not barrels, becoming the true source of power and security? In the first episode of Season 17 of Cleaning Up, Michael Liebreich and Bryony Worthington unpack a turbulent start to 2026. From shock geopolitical moves in the Americas and riots in the Middle East to the curious calm of a $60 oil price, they explore whether fossil fuels still move the world the way they once did.  The conversation ranges from the collapse of climate multilateralism and Europe’s energy malaise to the unstoppable rise of electrification, batteries, and system-level clean energy solutions across China, India, Africa, and the “rest of the world.” Leadership Circle: Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live. Discover more: The Electrification Staircase: https://www.watts-next.eu/ Kingsmill Bond on Cleaning Up: https://www.youtube.com/watch?v=G2bsoCOznXkArunabha Ghosh on Cleaning Up: https://www.youtube.com/watch?v=qMrn-JewoCoRachel Kyte on Cleaning Up: https://www.youtube.com/watch?v=V1m2lm2n_EECatch up on Season 16 of Cleaning Up: https://www.youtube.com/playlist?list=PLe8ZTD7dMaaDWQkhmAsaQ28p0h3Lw5I6v

    1h 8m
  4. Cleaning Up Redux: Canada's Controversial Queen of Green — Tzeporah Berman

    12/31/2025 · BONUS

    Cleaning Up Redux: Canada's Controversial Queen of Green — Tzeporah Berman

    This episode was originally broadcast in June 2023, watch the episode on YouTube here. Cleaning Up will return with new episodes January 7th, 2026.  Tzeporah Berman has been leading environmental campaigns in her native Canada and beyond for over thirty years. Today, she is Chair of the Fossil Fuel Non-Proliferation Treaty, and International Program Director at Stand.earth, the environmental organisation that she co-founded.  Tzeporah was formerly co-director of Greenpeace’s Global Climate and Energy Program, and her success campaigning against fossil development has seen her dubbed “Canada’s Queen of Green”. Tzeporah and Michael take in everything from helping turn Meta and other tech giants off coal and onto renewables, fighting fossil and pipeline expansion in Alberta, and whether a non-proliferation treaty could be the solution for a managed decline of fossil fuel use. Read more: The fossil fuel non proliferation treaty website: https://fossilfueltreaty.org

    1h 5m
  5. Cleaning Up Redux: Hot Rocks in a Box — Anand Gopal

    12/24/2025 · BONUS

    Cleaning Up Redux: Hot Rocks in a Box — Anand Gopal

    This episode was originally broadcast in June 2024. As the world transitions away from fossil fuels, one of the biggest challenges is decarbonizing industrial processes that require consistent, reliable sources of energy to produce high-temperatures. Typically these processes run on fossil gas, but now thermal batteries offer a solution by using electricity to store renewable energy in the form of heat.  Anand Gopal, Executive Director of Policy Research at Californian think tank Energy Innovation, joins Baroness Bryony Worthington to discuss his team's research on using thermal batteries to provide heat for manufacturing. Or as he calls them, hot rocks in a box. By storing intermittent solar or wind energy as the heat of molten salts or crushed rocks, thermal batteries can deliver reliable heat on-demand.  While the tech is almost at commercial availability, there's still one big obstacle: cost. In many countries it is still much cheaper to use gas over electricity, and that makes powering up thermal batteries uneconomical. So what needs to be done to employ them at scale? And will they take the wind out of hydrogen's sails? Find out on this week's episode of Cleaning Up.  Read more:  Energy InnovationIndustrial Thermal Batteries: Decarbonizing U.S. Industry While Supporting a High-Renewables GridEnergy Innovation's report on electric vehicle leasingEnergy Innovation's report on electric vs gas carsEnergy Innovation's report on industrial heat in ChinaEnergy Innovation's report on electrification of industrial heat

    58 min
  6. ⁠Stop Worrying About Clean Power, Start Electrifying Everything | Ep238: Lord Adair Turner

    12/17/2025

    ⁠Stop Worrying About Clean Power, Start Electrifying Everything | Ep238: Lord Adair Turner

    What will be the long-term impact of the US’s great leap backward on clean energy? How will the emergency of China as an electrotech giant reshape geopolitics? And what will be the defining trends and technologies of 2026? In this end-of-year episode of Cleaning Up, Baroness Bryony Worthington is joined by Lord Adair Turner, Chair of the Energy Transitions Commission, for a wide-ranging, candid, and occasionally fiery conversation about where the energy transition truly stands. Looking back on a decade since the Paris Agreement and ahead to the road beyond 2025, Turner delivers a clear-eyed diagnosis: emissions and politics are heading in the wrong direction, but technologies — including solar PV, batteries, and the wider “electrotech stack” — are advancing faster than almost anyone expected. Together, Bryony and Adair unpack why electrification is emerging as the central lever for decarbonising transport, industry, and heat; how China’s clean-tech machine is reshaping global energy economics; and why abundant, ultra-cheap electricity could fundamentally change prosperity, geopolitics, and climate outcomes. They also grapple with the harder questions: affordability versus ambition, the limits of carbon pricing, the challenge of decarbonising steel, cement, aviation and shipping, and the disruptive impact of US politics on global climate cooperation. They debate whether COPs still matter, why “nearly clean” power may be smarter than chasing absolute purity, and what breakthroughs could surprise us next. Leadership Circle: Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live. Discover more: Energy Transitions Commission: https://www.energy-transitions.org/Power Up: How Clean Energy Is Putting Fossil Fuel Demand in Doubt: https://www.energy-transitions.org/publications/power-up-fossil-fuel-demand-in-doubt/Lord Turner’s previous appearance on Cleaning Up: https://youtu.be/xxTngGxpeW0 Why Is It So Hard to Clean Up Global Shipping? | Ep229: Tristan Smith: https://www.youtube.com/watch?v=HdUCidkeDto

    1h 11m
  7. Honey, I Shrunk the Oil And Gas Sector | Ep237: Lord John Browne

    12/10/2025

    Honey, I Shrunk the Oil And Gas Sector | Ep237: Lord John Browne

    What happens when clean energy starts to outgrow fossil fuels at scale? Is it right to call China an electrostate? And how long will we be reliant on hydrocarbons? This week on Cleaning Up, host Michael Liebreich sits down with Lord Browne of Madingley — former CEO of BP and one of the earliest voices inside Big Oil to publicly call for emissions reductions from fossil fuels.   Recorded in front of a live audience in London, the discussion explores how geopolitics, energy security, AI, and rising global anxiety are reshaping the path to decarbonisation. Lord Browne reflects on launching BP’s original “Beyond Petroleum” strategy, his current work investing billions through BeyondNetZero, and why the future of climate action will be driven as much by adaptation, resilience, and people as by technology itself. From the rise of China as an electrification juggernaut and the US as an AI-powered energy giant, to the tipping point where clean energy demand could finally outpace fossil fuels, this episode offers rare insight from someone who has shaped — and challenged — the global energy system from the inside. Leadership Circle: Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live. Discover more: BeyondNetZero: https://www.generalatlantic.com/climate/Lord Browne’s previous appearance on Cleaning Up: https://youtu.be/8VXQ2EGAcGMThe Pragmatic Climate Reset, Part 1: https://youtu.be/OHKGor2_BzQ

    51 min
  8. Why Does The UK Pay So Much For Cheap-To-Produce Gas? | Ep236: Seb Kennedy

    12/03/2025

    Why Does The UK Pay So Much For Cheap-To-Produce Gas? | Ep236: Seb Kennedy

    What happens when a nation’s energy security rests on volatile global gas markets? Why does the UK pay market prices for some of the world’s cheapest-to-produce gas? And is now the moment to rethink decades of “leave it to the market” dogma? This week on Cleaning Up, Baroness Bryony Worthington sits down with Seb Kennedy, energy journalist and founder of Energy Flux, to unpack the turbulent geopolitics of natural gas, the coming LNG glut, and why the UK–Norway relationship sits at the heart of Britain’s energy affordability crisis. Drawing on their recent joint op-ed, Bryony and Seb explore the UK’s dependence on Norwegian gas, the vast windfalls that have flowed into Norway’s sovereign wealth fund since Russia’s invasion of Ukraine, and whether a new bilateral deal could shield consumers from future price shocks. They examine the structural forces reshaping global gas markets, the rise of speculative trading, and whether electrification will become harder when gas gets cheap. Leadership Circle: Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP of Portugal, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live. Discover more: Read Seb & Bryony’s Op-Ed on Energy Flux: https://www.energyflux.news/uk-norway-gas-trade-time-for-a-new-deal/Seb’s Energy Flux Podcast: https://www.energyflux.news/tag/podcast/Michael’s conversation with Carine Ihenecho Smith, Chief Governance and Compliance Officer at Norges Bank Investment Group: https://www.youtube.com/watch?v=H028Vwf7pNMThe UK’s updated plan for the North Sea gas transition: https://www.gov.uk/government/news/north-sea-future-plan-for-fair-managed-and-prosperous-transitionBritain eases opposition to new oil, gas permits, holds firm on taxes | Reuters: https://www.reuters.com/business/energy/uk-government-allows-some-new-oil-gas-fields-holds-firm-taxes-2025-11-26/

    1h 9m
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4.9
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Once a week, Michael Liebreich and Bryony Worthington have a conversation with a leader in clean energy, mobility, climate finance or sustainable development. Informative, inspiring and fun!

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