Michael Liebreich, Bryony Worthington
Cleaning Up: Leadership in an Age of Climate Change
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!
Author
Michael Liebreich, Bryony Worthington
Category
Latest episode
Jul 8, 2026
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Episodes
Managing Uncertainty: The Scenario Shell Game - Ep106: László Varró 16.11.2022 58:06
Ordered as referenced during the show: Meet the Shell Scenarios team | Shell Global After Ukraine – The Great Clean Energy Acceleration | BloombergNEF (bnef.com) Liebreich: Peak Emissions Are Closer Than You Think – and Here’s Why | BloombergNEF (bnef.com) Ep97: Julio Friedmann "The Carbon Wrangler" | Cleaning Up. Leadership in an age of climate change. Ep105: Nobuo Tanaka "The Race for Clean Ener...
Yanis Varoufakis: Power, Markets & Power Markets - Ep104 26.10.2022 59:15
Yanis Varoufakis is an academic economist and politician. He’s a member of Greek Parliament, Founder and Secretary-General of MeRA25, a left-wing political party, and famously served as Minister for Finance in Greece in 2015. He subsequently wrote a book about the experience called Adults in the Room (2017), about how the EU stymied his attempts to renegotiate Greece’s debts in the aftermath of th...
After Ukraine - The Great Clean Energy Acceleration - Cleaning Up Audioblog Episode 7 19.10.2022 27:08
This week's episode is a recording of Michael's latest blog post for BloombergNEF: https://about.bnef.com/blog/after-ukraine-the-great-clean-energy-acceleration/ Our thanks to BloombergNEF for allowing us to record it and share it with our Cleaning Up audience.
Industrial Heat is Electrifying! Ep103: Dr. Silvia Madeddu 12.10.2022 59:39
Dr Silvia Madeddu is a scientist and expert in decarbonisation strategies for energy-intensive industries. Dr Madeddu has a particular area of expertise in industrial heat, and is at the cutting edge of research hoping to transform the energy transition in Europe and beyond. Dr Madeddu is Senior Sustainability Consultant at Schneider Electric as of August this year. In her previous role, Dr Maded...
Climate Science, Caveman Brain - Ep102: Prof. Chris Rapley 05.10.2022 1:06:54
Professor Chris Rapley CBE is Professor of Climate Science at University College London’s Department of Earth Sciences. He served previously as Director of the British Antarctic Survey and of the Science Museum, and is a passionate and plain-speaking advocate for Climate Science. Professor Rapley is a Fellow of UCL and of St Edmund's College, Cambridge, a member of the Academia Europaea, Chair o...
Britain's Green Grandee - Ep101: Jonathon Porritt 28.09.2022 1:01:18
Jonathon Porritt has been on the front line of environmental campaigning for more than 45 years. He has worked tirelessly to promote the solutions to today’s converging environmental crises – including as Director of Friends of the Earth (1980s), co-chair of the Green Party (1980-83), of which he is still a member, Trustee of WWF-UK (1991-2005), Chair of the UK Sustainable Development Commission (...
Brewing up a clean fuel miracle - Ep100: Dr. Jennifer Holmgren 21.09.2022 53:26
Dr. Jennifer Holmgren is CEO of carbon recycling company, LanzaTech. Prior to joining LanzaTech, Dr. Holmgren was VP and General Manager of the Renewable Energy and Chemicals business unit at UOP LLC, a Honeywell Company. Dr. Holmgren is the author or co-author of 50 US patents and more than 30 scientific publications. In 2003, she was the first woman awarded the Malcolm E. Pruitt Award from the...
In the Engine Room of the Transition - Ep99: Dev Sanyal 14.09.2022 56:59
Dev Sanyal is Chief Executive Officer of VARO Energy Group AG, based in Zug, Switzerland. He was appointed to this role effective 1 January 2022. In July 2022, the company announced the ONE VARO Transformation Strategy accelerated by “Engine 1” focussed on Conventional Energies and “Engine 2” focussed on Sustainable Energies, with a commitment to investing two-thirds of capital in Engine 2 busines...
Writer, Activist & Constructive Disruptor - Ep98: Bill McKibben 07.09.2022 57:03
Bill McKibben is founder of Third Act, which organizes people over the age of 60 for action on climate and justice. His 1989 book The End of Nature is regarded as the first book for a general audience about climate change, and has appeared in 24 languages. He’s gone on to write 20 books, and his work appears regularly in periodicals from the New Yorker to Rolling Stone. He serves as the Schumann D...
The Carbon Wrangler - Ep97: Julio Friedmann 27.07.2022 1:13:33
Dr. Julio Friedmann is Chief Scientist and Chief Carbon Wrangler at Carbon Direct. He recently served as Principal Deputy Assistant Secretary for the Office of Fossil Energy at the Department of Energy where he was responsible for DOE’s R&D program in advanced fossil energy systems, carbon capture, and storage (CCS), CO2 utilisation, and clean coal deployment. More recently, he was a Senior...
The Voice of Sustainable Capitalism - Ep95: Mindy Lubber 13.07.2022 53:33
Mindy Lubber is the CEO and President of the sustainability nonprofit organization Ceres. She leads an all-women executive leadership team and more than 160 employees working to mobilize the most influential investors and companies to solve the world’s greatest sustainability challenges. She has been at the helm since 2003, and under her leadership, the organization and its powerful networks and g...
The Case for GW Nuclear - Ep94: Julia Pyke 06.07.2022 1:05:34
Julia is currently leading the introduction of private financing into new nuclear in the UK – Sizewell C is the path finder project. This involves working cooperatively with Government, with cross party MPs, trade unions, with industry and with the financial community. Julia has lead the development of a new vision for nuclear as ‘servant of the future energy system’ – nuclear working together wi...
The Inconvenient Truth about Climate Science - Ep93: Prof. Roger Pielke Jr. 29.06.2022 1:39:23
Roger Pielke, Jr. has been on the faculty of the University of Colorado Boulder since 2001, where he teaches and writes on a diverse range of policy and governance issues related to science, technology, environment, innovation and sports. Roger is a professor in the Environmental Studies Program. Roger is currently focusing his research on a NSF-sponsored, 16-country evaluation of science advice...
650 Leagues of HVDC Under the Sea - Ep92: Simon Morrish 22.06.2022 1:01:07
Simon Morrish is the CEO and founder of Xlinks, CEO of Ground Control and Partner at Levitate Capital. Simon is a serial entrepreneur (he is the founder of amongst others, Xlinks, Future Motors and Skysports) who has invested in and worked with companies such as Excel IT, Solar Ventus, CQC, Survey Roofing and Litter Boss. Simon started out at Morgan Stanley as a Derivatives Analyst, he then work...
Calling the Earthshots - Ep91: Hannah Jones 15.06.2022 55:40
Hannah Jones is the CEO of The Earthshot Prize, a prize and a platform founded by HRH Prince William and the Royal Foundation in 2020 to search, spotlight and scale solutions that can help repair and regenerate the planet in this decade. Hannah Jones is a social and environmental advocate believing in the power of entrepreneurism, innovation and collaboration to affect systems change. She starte...
From Red Dwarf to Fully Charged Media Giant - Ep90: Robert Llewellyn 08.06.2022 1:02:56
Robert Llewellyn is the joint CEO of the Fully Charged Show. Robert Llewellyn is most commonly known for playing the role of Kryten for 30 years in the BBC hit series Red Dwarf. He hosted the Channel 4 series Scrapheap Challenge for 10 years, along with 8 series of How Do They Do It for Channel 5. More recently he has taken his career to YouTube with The Fully Charged Show, the series has over 870...
Pioneering Impact Investor - Ep89: Ion Yadigaroglu 07.06.2022 1:03:02
Ion Yadigaroglu has been Managing Partner at Capricorn Investment Group since 2004, and is an early investor in iconic technology companies including Tesla, SpaceX, Planet, QuantumScape and Saildrone. Capricorn was born from the desire to demonstrate the huge investment potential that resides in breakthrough commercial solutions to the world’s most pressing problems, and as such is one of the ori...
Germany's Secretary of State for the Energiewende - Ep88: Patrick Graichen 01.06.2022 1:08:02
Patrick Graichen is a State Secretary at the Federal Ministry for Economic Affairs and Climate Action. He has held this post since 15 December 2021 and is responsible for energy and climate policy. From 2012, Graichen was instrumental in setting up the think tank Agora Energiewende, taking on the roles of Executive Director and Managing Director from 2014 until his move to the Federal Ministry for...
The Economist-Diplomat Championing Clean Energy - Ep87: Francesco La Camera 25.05.2022 58:18
Francesco La Camera has been the Director-General of the International Renewable Energy Agency (IRENA) since April 2019. Under Francesco’s leadership the Agency has forged a series of new strategic partnerships with UN organisations including UNDP, UNFCCC and Green Climate Fund among others. A key priority of his tenure is to implement a more action-oriented approach to the Agency’s work. Previous...
From Climate Law Maker to Superglued Law Breaker - Ep86: Farhana Yamin 18.05.2022 1:11:04
Farhana Yamin is an international climate change lawyer, public speaker, author and social justice activist. Farhana is a Visiting Professor at the University of the Arts in London, Associate Research Fellow at Chatham House, Senior Adviser to SystemIQ and Co Coordinator of Camden Think and Do. Farhana has spent over three decades working in the climate space – she represented small island and dev...
Matching Net-Zero Supply and Demand - Ep85: John Pettigrew 11.05.2022 49:25
John joined National Grid in 1991 and during his time at the company has held a variety of senior management roles, including UK Director of Engineering in 2003, Chief Operating Officer and Executive Vice President for the US Electricity Distribution & Generation business in 2007, Chief Operating Officer for UK Gas Distribution in 2010, and UK Chief Operating Officer from 2012 to 2014. He joined...
The 130 trillion-dollar man - Ep84: Mark Carney 04.05.2022 55:46
Mark Carney is one of the towering figures of climate finance. In 2020 Mark became the UN Special Envoy on Climate Action and Finance, and the adviser to the UK on finance for COP 26. At COP26, in Glasgow, he launched GFANZ - the Glasgow Financial Alliance for Net Zero, whose members manage $130 trillion of financial assets and have pledged to invest them in line with the Paris agreements. Mark c...
Free Solar - Ep83: Alex Honnold 13.04.2022 1:03:48
Alex Honnold is one of the world’s best rock climbers, famous for his free solo ascents of big walls, including his 2017 first free solo of El Capitan in Yosemite. Alex began studies in engineering at the University of California-Berkeley but dropped out to pursue his passion for climbing, living out of his van. He first attracted attention within the climbing community in 2008 when he became th...
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