Cleaning Up. Leadership in an age of climate change.

Once a week Michael Liebreich has a conversation with a leader in clean energy, mobility, climate finance or sustainable development. Informational, inspiring and fun!

Recent Episodes

Ep107: Prof. David Cebon "Thinking in Systems"

Nov. 23, 2022

David Cebon is Professor of Mechanical Engineering at the University of Cambridge, Director of the Centre for Sustainable Road Freight, and a founding member of the Hydrogen Science Coalition. Prof. Cebon leads Cambridge Uni…

Ep106: László Varró "Managing Uncertainty: The Scenario Shell Game"

Nov. 16, 2022

László Varró is Vice-President, Global Business Environment at Shell, where he leads their Scenarios Team, and was formerly Chief Economist at the International Energy Agency. Varró joined Shell in 2021, after ten years a…

Ep105: Nobuo Tanaka "The Race for Clean Energy Dominance"

Nov. 9, 2022

Nobuo Tanaka is one of the world’s foremost experts on energy, technology and trade policy. He’s had a near 50-year career in energy, including four years as Executive Director of the International Energy Agency between 2007…

Ep104: Yanis Varoufakis "Power, Markets & Power Markets"

Oct. 26, 2022

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 201…

Cleaning Up Audioblog Episode 7: After Ukraine - The Great Clean Energy Acceleration

Oct. 19, 2022

This week's episode is a recording of Michael's latest blog post for BloombergNEF: Our thanks to BloombergNEF for allowing us to record it and sh…

Ep103: Dr. Silvia Madeddu "Industrial Heat is Electrifying!"

Oct. 12, 2022

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 tr…

Ep102: Prof. Chris Rapley "Climate Science, Caveman Brain"

Oct. 5, 2022

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 pas…

Ep101: Jonathon Porritt "Britain's Green Grandee"

Sept. 28, 2022

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…

Ep100: Dr Jennifer Holmgren "Brewing up a clean fuel miracle"

Sept. 21, 2022

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. …

Ep99: Dev Sanyal "In the Engine Room of the Transition"

Sept. 14, 2022

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. Prior to this, Dev had a 32-year career with BP plc including over a decad…

Ep98: Bill McKibben "Writer, Activist & Constructive Disruptor"

Sept. 7, 2022

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, a…

Ep97: Julio Friedmann "The Carbon Wrangler"

July 27, 2022

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 respo…

Ep96: Aksel Lund Svindal "From Skier to Investor - Prepared for Impact"

July 20, 2022

Aksel is one of the most successful alpine skiers in history – winning 2 Olympic golds, 5 World Championships, 36 World Cup races and two overall World Cup titles. He began his career as a serial entrepreneur and investor wh…

Ep95: Mindy Lubber "The Voice of Sustainable Capitalism"

July 13, 2022

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 co…

Ep94: Julia Pyke "The Case for GW Nuclear"

July 6, 2022

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, wi…

Ep93: Prof. Roger Pielke Jr. "The Inconvenient Truth about Climate Science"

June 29, 2022

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, innovati…

Ep92: Simon Morrish "650 Leagues of HVDC Under the Sea"

June 22, 2022

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 inve…

Ep91: Hannah Jones "Calling the Earthshots"

June 15, 2022

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…

Ep90: Robert Llewellyn "From Red Dwarf to Fully Charged Media Giant"

June 8, 2022

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 Ch…

Ep89: Ion Yadigaroglu "Pioneering Impact Investor"

June 7, 2022

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 fro…

Ep88: Patrick Graichen 'Germany's Secretary of State for the Energiewende'

June 1, 2022

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…

Ep87: Francesco La Camera 'The Economist-Diplomat Championing Clean Energy'

May 25, 2022

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 or…

Ep86: Farhana Yamin "From Climate Law Maker to Superglued Law Breaker"

May 18, 2022

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 Ho…

Ep85: John Pettigrew 'Matching Net-Zero Supply and Demand'

May 11, 2022

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 U…

Ep84: Mark Carney 'Matching Net Zero Supply and Demand'

May 4, 2022

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 GF…

Ep83: Alex Honnold "Free Solar"

April 13, 2022

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 Ca…

Ep82: Claire Skinner "The Search for Climate Talent"

April 6, 2022

Claire Skinner is a partner in Heidrick & Struggles' London office and leader of the Europe region. She is a member of the firm’s CEO & Board, Industrial, and Private Equity practices. Claire has more than 20 years of exp…

Cleaning Up Audioblog Episode 6 "Resilience, Ukraine and Net Zero: What Could Possibly Go Wrong"

March 30, 2022

This episode of Cleaning Up is based on a March 2022 blog post written by Michael for BloombergNEF. We would like to thank Bloo…

Ep81: Tom Steyer 'An Epiphany Based on Data'

March 23, 2022

Tom Steyer is Co-Executive Chair of Galvanize Climate Solutions, a mission-driven investment platform. Tom Steyer founded and ran Farallon Capital Management, a multi-strategy global investment business based in San Franc…

Ep80: Emma Pinchbeck 'Energy Security - Deflating the Gasbags'

March 16, 2022

Emma Pinchbeck has been the Chief Executive of Energy UK, the trade association for the energy industry since July 2020. Before taking up this post she was Deputy CEO of RenewableUK for 4 years and was the Head of Climate…

Ep79: Rhian-Mari Thomas 'A Greener Future Made Possible by Finance'

March 9, 2022

Rhian-Mari Thomas is Chief Executive of the Green Finance Institute. The Institute sits at the nexus of the public and private sectors, the Green Finance Institute convenes and leads sectoral coalitions of global experts, th…

Cleaning Up Audioblog Episode 5 'International Women's Day - Towards an Inclusive Transition'

March 8, 2022

This episode of Cleaning Up is based on a 2015 blog post written by Michael for BloombergNEF. We would like to thank BloombergN…

Ep78: Emily Shuckburgh 'Maths, Models and Melting Ice'

March 2, 2022

Professor Emily Shuckburgh OBE is Director of Cambridge Zero, the University of Cambridge's major climate change initiative. Emily is a climate scientist and mathematician, a Fellow of the Cambridge Institute for Sustain…

Ep77: Inger Andersen 'Environmental Conscience of the World'

Feb. 23, 2022

Inger Andersen is Under-Secretary-General of the United Nations and Executive Director of the United Nations Environment Programme. From 2015 until 2019, Inger was the Director-General of the International Union for Conse…

Ep76: Tommaso Demarie 'A Quantum of Hope'

Feb. 16, 2022

Tommaso Demarie (PhD) is co-founder and CEO of Entropica Labs, a company working on optimisation with and for quantum computing. Tommaso has 12 years of experience in the field of quantum information and computation. Befor…

Ep75: David Turk 'US Net Zero - From Pledge to Policy"

Feb. 9, 2022

David Turk serves as Deputy Secretary in the US Department of Energy. Before joining President Biden’s administration in 2021, David spent over 4 years as Deputy Executive Director of the International Energy Agency (IEA)…

Ep74: Francesco Starace 'Europe's Clean Power Leader'

Feb. 2, 2022

Francesco Starace is Chief Executive Officer and General Manager of Enel. Before becoming the CEO in 2014, Francesco spent 14 years at Enel, holding a number of executive positions - between 2008 and 2014 he led Enel’s re…

Ep73: Lt Gen Richard Nugee 'Waging War on Climate Change'

Jan. 26, 2022

Lieutenant General (Retd) Richard Nugee is the lead author of the UK Ministry of Defence’s Climate Change and Sustainability Strategic Approach report. Richard spent over 35 years in the military. He was first commissione…

Ep72: Nathan Gambling 'Solving the Low Carbon Skills Gap'

Jan. 19, 2022

Nathan Gambling is a heating engineer and lecturer who has taught in colleges and a prison. As well as industry, teaching and assessing qualifications he has a psychology degree in Behavioural studies and is regarded as a le…

Ep71: Pasquale Romano 'The Man in Charge of Charging'

Jan. 12, 2022

Pasquale Romano is President and Chief Executive Officer of ChargePoint and a member of the company’s board of directors. Pasquale joined ChargePoint in February of 2011, bringing more than 30 years of technology industry le…

Ep70: Ban Ki-moon 'The Planet's Leading Diplomat'

Jan. 5, 2022

Ban Ki-moon was the 8th Secretary General of the UN. He is the Chairman of Ban Ki-moon Foundation for a Better Future. In April 2019, Mr. Ban was elected as the Chairman of Presidential National Council on Climate and Air Qu…

Ep69: Peter Sweatman 'Our Savings Will Save the Planet'

Dec. 22, 2021

Peter Sweatman is the founder and Chief Executive of Climate Strategy & Partners (@ClimateSt and, a strategic consulting group in Clean Energy, Clean Technology Innovation and Energy Efficiency worki…

Ep68: Amory Lovins 'The Einstein of Energy Efficiency'

Dec. 15, 2021

Amory Lovins is Cofounder and Chairman Emeritus of the Rocky Mountain Institute. Apart from co-founding the Institute in 1982 he served as its Chief Scientist between 2007 and 2019. Amory is a an author of 31 books and mor…

Ep67: Mariana Mazzucato 'Mission Economist'

Dec. 8, 2021

Mariana Mazzucato (PhD) is Professor in the Economics of Innovation and Public Value at University College London (UCL), where she is Founding Director of the UCL Institute for Innovation & Public Purpose (IIPP). She i…

Ep66: David Sandalow 'US China - strategic rivals, climate partners'

Dec. 1, 2021

David Sandalow is the Inaugural Fellow at the Center on Global Energy Policy and co-Director of the Energy and Environment Concentration at the School of International and Public Affairs at Columbia University. He founded an…

Ep65: Dan Doctoroff 'Cities, Service, and Cities-as-a-Service'

Nov. 24, 2021

Dan Doctoroff is the Founder and CEO of Sidewalk Labs, an Alphabet company that works with cities to address key urban problems. Before founding Sidewalk Labs in 2015, Dan spent 6 years working at Bloomberg L.P. first as…

Ep64: Guy Turner 'Good COP, bad COP?'

Nov. 17, 2021

Guy Turner is the founder and CEO of Trove Research and an expert on carbon markets. Guy has 30 years’ experience in research and strategy in sustainability and the energy transition. He spent his first 15 years in consul…

Ep63: Glen Peters 'The Past, Present & Future of CO2 Emissions'

Nov. 10, 2021

Glen Peters is Research Director at Center for International Climate Research (CICERO) in Oslo. Previously he was a post-doctoral researcher at the Industrial Ecology Programme at NTNU. Dr Peters is a worldwide authority …

Ep62: Damilola Ogunbiyi 'Energy - The red Thread Through the SDGs'

Nov. 3, 2021

Damilola Ogunbiyi is the CEO of Sustainable Energy for All (SEforALL), Special Representative of the UN Secretary-General for Sustainable Energy for All and Co-Chair of UN-Energy Mrs. Ogunbiyi has extensive experience in t…

Ep61: Julia King 'Engineering the UK’s Net Zero Transition'

Oct. 27, 2021

Professor Dame Julia King (Baroness Brown of Cambridge) DBE, FRS, FREng is an engineer, crossbench member of the House of Lords and Chair of The Carbon Trust. Julia started her career in academia as a Rolls-Royce fellow a…

Ep60: Todd Stern 'President Obama's climate negotiator'

Oct. 20, 2021

Todd Stern is a senior fellow at the Brookings Institution, best known for leading the US delegation at COP21 in his capacity as Special Envoy for Climate Change at the Department of State. Todd’s political career started…

Ep 59: Alain Ebobissé 'Meeting Africa's Infrastructure Needs'

Oct. 13, 2021

Alain Ebobissé is a specialist in the financing and development of infrastructure and CEO of Africa50. Prior to joining the organization, Mr. Ebobissé served as the Global Head of the World Bank Group’s Global Infrastructur…

Ep 58: John Redfern 'Cracking the Geothermal Code'

Oct. 11, 2021

John Redfern is an investor, advisor and serial entrepreneur in the data analytics, oil service and energy tech verticals. John spent his career in executive roles at multiple international oil and oil service companiess inc…

Ep 57: Julie Klinger 'Rare Earths, Real Insight'

Oct. 6, 2021

Julie Klinger is an Assistant Professor of Geographer at the University of Delaware and also affiliated with the university's new Minerals, Materials and Society Program. She is the author of "Rare Earth Frontiers: From Terr…

Ep 56: The Rt Hon The Lord Mayor William Russell 'Greening the City of London'

Sept. 29, 2021

William Russel was elected as Alderman for the Ward of Bread Street in 2013 and served as Sheriff of the City of London in 2016-17. He has been the Lord Mayor of the City of London since 2019. Before leaving for public serv…

Ep55: Elizabeth Wathuti 'Planting the Seeds of Inspiration'

Sept. 22, 2021

Elizabeth Wathuti is a Kenyan environment and climate activist and founder of the Green Generation Initiative, which nurtures young people to be environmentally conscious and has planted 30,000 tree seedlings in Kenya. S…

Ep 54: Laurence Tubiana 'The Éminence Grise of the Paris Agreement'

Sept. 15, 2021

Laurence Tubiana is CEO of the European Climate Foundation (ECF). In addition, she is the Chair of the Board of Governors at the French Development Agency (AFD), the Chair of the Board at Expertise France (The French public …

Ep53: Eamon Ryan 'Ireland's Jolly Green Giant'

Sept. 8, 2021

Eamon Ryan is the Minister for the Environment, Climate and Communications, Minister for Transport in the Irish government and leader of the Green Party. Eamon’s political career began in 1998 when he was co-opted to Dublin…

Ep52: Tony Abbott 'Green Trade or Green Trade-Off'

Sept. 1, 2021

Tony Abbott was the Australian PM between 2013 and 2015, the leader of the Liberal Party between 2009 and 2015 and an MP for Warringah between 1994 and 2019. He currently serves as an advisor to the UK Board of Trade alongsi…

Cleaning Up Audioblog Episode 4: Separating Hype from Hydrogen – Part Two: The Demand Side

Aug. 11, 2021

This episode of Cleaning Up is based on a October 2020 blog written by Michael for BloombergNEF We would like to thank BloombergN…

Cleaning Up Audioblog Episode 3: Separating Hype from Hydrogen – Part One: The Supply Side

Aug. 4, 2021

This episode of Cleaning Up is based on a October 2020 blog written by Michael for BloombergNEF We would like to thank Bloombe…

Cleaning Up Audioblog Episode 2: Climate Action – It’s The Trade, Stupid

July 28, 2021

This episode of Cleaning Up is based on a June 2021 blog written by Michael for BloombergNEF We would like to thank BloombergNEF for allowing us…

Ep51: Yousef Alshammari 'Saudi Arabia's net zero conundrum'

July 21, 2021

Dr. Yousef Alshammari, is the CEO and Head of Oil Research at CMarkits. He is a former Research Fellow in energy economics at OPEC. He obtained his PhD in Chemical Engineering from Imperial College London where he worke…

Ep50: Lord John Browne 'Beyond Net Zero'

July 14, 2021

Lord Browne is a Senior Advisor at General Atlantic on climate and Net Zero, providing strategic support and advice to the firm’s investment teams and portfolio companies. He served as Group Chief Executive of BP from 1995 t…

Ep49: Johan Rockström 'Pushing Planetary Boundaries'

July 7, 2021

Johan Rockström is Director of the Potsdam Institute for Climate Impact Research (PIK) and Professor in Earth System Science at the University of Potsdam. He is an internationally recognized scientist on global sustainabi…

Ep48: Nick Stern 'Planetary Crisis? Call an Economist!'

June 30, 2021

Professor Lord Nicholas Stern is the IG Patel Professor of Economics and Government, Chairman of the Grantham Research Institute on Climate Change and the Environment, Chair of the Centre for Climate Change Economics and Pol…

Innovation Finance

Ep47: Gina Domanig 'Open to Innovation'

June 23, 2021

Gina Domanig is the Managing Partner and founder of Emerald Technology Ventures, the first independent cleantech venture capital fund in Europe. Gina currently serves on the boards of the following portfolio companies: G…


Ep46: Angelina Galiteva 'California's Clean Energy Dream'

June 16, 2021

Angelina Galiteva has been appointed Chair of the California Independent System Operator’s Board of Governors in 2020, after a decade spent on the Board as a member. Angelina is the founder & Chair of the Board of Renewa…


Ep45: Catherine McKenna 'Powering Canada Past Coal'

June 9, 2021

Catherine McKenna is a Canadian Liberal politician serving as the Minister of Infrastructure and Communities since 2019. Before that she was the Minister of Environment and Climate Change for 4 years. Her ministerial man…


Ep44: James Thornton 'Enforcing the Laws of Nature'

June 2, 2021

James Thornton is the CEO and founder of ClientEarth, a leading environmental law organisation in Europe. Since its establishment in 2007, ClientEarth tackled world’s most pressing environmental issues such as biodiversity l…

Politics Innovation

Ep43: Nigel Topping 'Racing to Zero'

May 26, 2021

Nigel Topping was appointed UK High Level Champion for Climate Action in January 2020. His role involves bringing together different stakeholders in the #racetozero. His vision is to create a bigger role for non-state actors…

Science Innovation

Ep42: Thomas Nowak 'Pumping Heat'

May 19, 2021

Thomas Nowak is the Secretary General of the European Heat Pump Association - he’s an expert on heating and electricity. Thomas is a man who walks the talk – he’s a proud owner of a heat pump and a solar power plant. In …

Politics Business

Ep41: Sharan Burrow 'Just Transition or Just Talk?'

May 12, 2021

Sharan Burrow has been the General Secretary of the International Trade Union Confederation since 2010. In her role she represents 200 million workers in 163 countries and territories with 331 national affiliates and is the …

Policy Finance

Cleaning Up Audioblog - Episode 1: Climate and Finance, Lessons from a Time Machine

May 5, 2021

This episode of Cleaning Up is based on a March 2021 blog written by Michael for BloombergNEF We would like to thank BloombergNEF for a…

Academia Finance

Ep40: Naoko Ishii 'Global Environment Facilitator'

April 28, 2021

Naoko Ishii is a professor, executive vice president and Director of the Center for Global Commons at the University of Tokyo since August 2020. The Center for Global Commons has the mission of putting academia at the forefr…

Agriculture Debates

Ep39: Debate Special with Gareth Wyn Jones and Ben Goldsmith 'The Argument That Never Happened'

April 22, 2021

It’s a first here on Cleaning Up, our very own debate special. Today we will be joined by Ben Goldsmith and Gareth Wyn-Jones to discuss farming and agricultural policy. Please welcome them both, and wish them both luck! …


Ep38: Tony Blair 'A Masterclass in Climate Geopolitics'

April 14, 2021

Tony Blair, UK Prime Minister from 1997 to 2007 and Executive Chairman of the Tony Blair Institute, joins Michael Liebreich for the first episode of Season 3. Bio Tony Blair was the UK Prime Minister from 1997 to 20…


Ep37: Teresa Ribera 'Driving the Ecological Transition'

March 31, 2021

Teresa Ribera, Deputy Prime Minister in the Spanish government and the Minister for the Ecological Transition and Demographic Challenge, is joining us this week on Cleaning Up. She has played a key role in Spain’s low-carbon…


Ep36: Prof. Jim Skea 'It's climate, Jim, but not as we know it.'

March 24, 2021

This week, Michael Liebreich is joined by Professor Jim Skea from Imperial College London’s Centre for Environmental Policy and the co-author of the seminal IPCC 2018 Special Report on Global Warming of 1.5C. Bio Jim…


Ep35: Kate Hampton 'Investing in Climate Activism'

March 17, 2021

This week our guest on Cleaning Up is Kate Hampton, the CEO of the Children's Investment Fund Foundation and a long-time expert in sustainable finance and the carbon markets. Bio Kate Hampton has been the CEO of the…


Ep34: Kristian Ruby 'Electrifying Almost Everything for Net-Zero'

March 10, 2021

This week, Kristian Ruby, the Secretary-General of Eurelectric since 2017, will be joining us for a conversation. Eurelectric is a pan-European organisation with the aim of representing the common interests of the electricit…

Happy International Women’s Day!

March 8, 2021

Today is International Women’s Day. We want to take the time to highlight some of the incredible women who are leading the world’s pivot to net-zero. From politics to finance and diplomacy, these women are vital to climate a…


Ep33: Rt Hon Amber Rudd 'Leading the way from Westminster to Paris'

March 3, 2021

From the core of British politics, Amber Rudd joins Michael Liebreich for a conversation. She is the former MP for Hastings and Rye representing the Conservative party, the Home Secretary for 2 years from 2016, and the Secre…


Ep32: Greg Jackson 'Building the Billion-Customer Energy Company'

Feb. 24, 2021

Joining Cleaning Up today is start-up legend, Greg Jackson. Greg is CEO and founder of Octopus Energy whose mission is to bring ‘power to the people’ by supplying their customers with 100% green electricity at fair prices. …


Ep31: Emma Howard Boyd 'Climate Change? We'll be in Floods.'

Feb. 17, 2021

Emma Howard Boyd is one of the leading voices in the UK’s Environment scene. As the Chair of the Environment Agency, she is at the forefront of the current environment agenda. This week, Michael and Emma will discuss everyth…


Ep30: Claire Perry O'Neill 'Ecopragmatism and Policy Innovation'

Feb. 10, 2021

Having first met in Business School in Harvard, Claire Perry O'Neill and Michael Liebreich go back a long way. However, he has never been surprised at how much she's achieved since then. From finance to politics and now to t…


Ep29: Steven Chu 'Nobel Hero talks Net Zero'

Feb. 3, 2021

This week, we welcome Steven Chu, Professor of Physics and Physiology at Stanford University, and the 1997 co-recipient of the 1997 Nobel Prize in Physics to Cleaning Up. Professor Chu was was the first of two Secretaries of…


Ep28: Fatih Birol 'Setting the World's Energy Agenda'

Jan. 27, 2021

Named one of the most influential people in the energy sector by the Forbes magazine and the energy personality of the year by the Financial Times in 2017, Fatih Birol is one of the most important voices in the energy world.…


Ep27: Beverley Gower-Jones 'Clean Growth Funder'

Jan. 20, 2021

Beverley Gower-Jones is the leading figure in the cleantech start-up world. She is the Managing Partner at the Clean Growth Fund which invests in the UK's most promising early-stage, clean growth ventures. She’s also the CEO…


Ep26: Minister Zac Goldsmith 'Environmental leadership in a post-Brexit world'

Jan. 13, 2021

More than any other single person, Zac Goldsmith - or The Right Honourable Lord Goldsmith of Richmond Park as he is properly known – is responsible for the UK Conservative Party’s relatively recent conversion to the cause of…


Ep25: Bryony Worthington 'Putting the Act into climate action'

Jan. 6, 2021

How do we get climate at the forefront of politics? How can we good data influence the climate transition? In the first episode of the second season of Cleaning Up, Michael Liebreich speaks to Bryony Worthington: a crossbenc…

Ep24: Holiday Special - A Look Back at Season One

Dec. 23, 2020

2020 has been a strange and difficult year. In the midst of the global pandemic, Michael decided to reach out to some familiar faces in global climate leadership not only to catch up but also to discuss how the world can mov…


Ep23: James Cameron 'Trade and Sustainability - the Radical in a Suit'

Dec. 16, 2020

Last but not least, our concluding episode of 2020 is with James Cameron. No not the director, but he is doing radical things in a suit (this will make more sense once you press play). Find out why Tom Paine was an important…


Ep22: Robin Chase ‘Mobility, Cities and Social Entrepreneurship’

Dec. 9, 2020

What is the future of urban transportation in the world’s cities? Will autonomous cars revolutionize our lives? Meet the woman behind the world’s largest car sharing company, Robin Chase, the transport entrepreneur. She is t…


Ep21: Claude Turmes ‘Clean Energy Coalition-builder'

Dec. 2, 2020

What happens behind the scenes of the EU Parliament? One of the leading figures in European politics, Claude Turmes, the Minister for Energy and Minister for Spatial Planning in Luxembourg, joins Michael Liebreich for episod…


Ep20: Richenda Van Leeuwen 'A Life of Energy Access and Inclusion'

Nov. 25, 2020

As a 10 year old girl, Richenda Van Leeuwen saw a solar panel at the Centre of Alternative Technology on a rainy day in Wales. This would serve as her first point of inspiration for the career ahead of her. Now, she is the E…


Ep19: Mike Bennetts 'Leadership from the Heart of the Problem'

Nov. 18, 2020

From CEO of Z Energy to founding the Climate Leaders Coalition, Mike Bennetts has had an immense impact on New Zealand’s position in reducing emissions in the country. Mike and Michael sit down from other sides of the world …

Innovation Finance

Ep18: Nancy Pfund 'Women backing Winners'

Nov. 11, 2020

How can venture capital be used to promote social change and environmental improvement? As a leading venture capitalist of her time and one of the early investors in Tesla, find out the drive behind Nancy Pfund’s incredible …

Politics Science

Ep17: Prof. Ernest J. Moniz 'Innovation and Power'

Nov. 6, 2020

What would Professor Ernest Moniz, 13th United States Secretary of Energy, say to the 16th Secretary who will be appointed in the coming months? Would he, as the architect of the JCPOA (known better as the Iran nuclear dea…


Ep16: Dr Kandeh K. Yumkella 'Sustainable Energy for All'

Nov. 4, 2020

How did Kandeh Kolleh Yumkella impact the Sustainable Development Goals? How has he influenced energy's position in development? Dr Kandeh Kolleh Yumkella – known as KKY in his native Sierra Leone - is a senior academic and…