Michael Liebreich, Bryony Worthington

Cleaning Up: Leadership in an Age of Climate Change

News EN ↓ 289 episodes

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

News

Latest episode

Jul 8, 2026

Where to listen?

Podcasts in the app Replaio Radio Coming soon

Podcasts are coming to the app soon. Install now and be the first to see a whole new take on podcasts

Get it on Google Play Install for free Android 5M+ downloads · 4.8 rating iOS soon

Episodes

Cleaning Up Redux: From Free Solo to Free Solar — Alex Honnold 20.08.2025

This episode was originally broadcast in April 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 California-Berkeley but dropped out to pursue his passion for climbing, living out of his van. He first attracted attention withi...

The Inevitable End of Fossil Fuels | Ep221: Michael Liebreich & Bryony Worthington 13.08.2025

What if the energy transition isn't a race, but a steady march toward the end of fossil fuel usage? Do we need to move more like the tortoise, and less like the hare? And in a world of competing narratives, who gets to define "pragmatism"? In this season finale of Cleaning Up, hosts Michael Liebreich and Bryony Worthington unpack these questions as they review Season 15's most compelling conversat...

Audioblog 15: The Pragmatic Climate Reset Part 1 — The Energy Transition Is Not Dead 06.08.2025

In February, veteran fossil industry advisor Dan Yergin and two co-authors published a piece called The Troubled Transition. In it they dismiss the idea that there is or can ever be an energy transition, anchored on the fact that fossil fuels contributed 85% to so-called primary energy in 1990 and still contribute 80% today.  Needless to say, their argument has been widely amplified by the oil and...

The Inflation Induction Act: How the US Lost The Race for Clean Energy | Ep 219: Ethan Zindler 30.07.2025

Is the US about to enter a new era of energy inflation? Can technological progress outpace political regression? Are we witnessing the permanent end of America's climate ambitions? This week on Cleaning Up, Michael Liebreich sits down with Ethan Zindler, former climate counselor to Treasury Secretary Janet Yellen, now head of countries and policy at BloombergNEF, to dissect the dramatic shifts in...

North Sea Oil & Gas Is Dying, What Comes Next? | Ep218: Tessa Khan 23.07.2025

⁠If the UK can’t ditch fossil fuels, who can? What impact would more drilling in the North Sea have for UK energy prices? What does the end of the net zero consensus mean for UK energy policy? This week on Cleaning Up, host Bryony Worthington sits down with Tessa Khan, founder of Uplift, a charity challenging the oil and gas industry's hold on UK energy policy. A lawyer turned campaigner, Khan off...

How Fungi Shape Our World, From Carbon Sinks to Zombie TV: | Ep217: Merlin Sheldrake 16.07.2025

What if the key to solving our climate crisis lies beneath our feet? Could tiny fungal networks be the unsung heroes of carbon sequestration? And how might reimagining our relationship with fungi transform our understanding of life on Earth?  This week on Cleaning Up, Bryony Worthington sits down with Merlin Sheldrake, author of the bestselling "Entangled Life," to explore the extraordinary world...

The Best Markets for Wind and Solar Are Not Where You Think | Ep216: Daniel Calderon 10.07.2025

In a world where 17% of all electricity is generated from wind and solar and where 93% of all new capacity added to the grid is from renewables, it can be easy to forget that countries got their first wind and solar resources within just the last few years.  And in fact, some countries are still waiting for their first.  Today on Cleaning Up, we’re joined by Daniel Calderon, Founder and Managing P...

NVIDIA Rising: Will The AI Boom Bust The Planet? | Ep215: Josh Parker 02.07.2025

In 1849, when the Gold Rush hit California, the people who were certain to make money were not the miners, but the sellers of picks and shovels. Indeed, America's first millionaire, Samuel Brannan, made his fortune by adding huge margins to everyday items that suddenly become high in demand.  Today's sellers of picks and shovels are those providing the hardware and infrastructure to the software a...

Is There A Future Without Oil & Gas? Ep214: Ben van Beurden 25.06.2025

Oil and gas companies lie at the heart of the energy transition. To some, they are heroes, continuing to power human progress despite all the odds. To some, they are villains, responsible for the climate change that is devastating our planet.  This week on Cleaning Up, Michael Liebreich interviews Ben van Beurden, former CEO of Shell from 2014 to 2023. The conversation explores the complexities of...

Deforestation, Oil and Aviation Fuels: A Brazilian Take on the Climate Emergency | Ep213: Thelma Krug 18.06.2025

What happens if the Amazon rainforest stops absorbing carbon and starts releasing it? Do we need geoengineering to help us cool an overheating planet? And how can developing countries balance environmental preservation with economic development? This week on Cleaning Up, Baroness Bryony Worthington sits down with Thelma Krug, a renowned Brazilian scientist and mathematician, and former vice chair...

⁠Hydrogen Subsidies, Clean Power & Fixing Spain's Blackouts | Ep212: EU Commissioner Dan Jørgensen 11.06.2025

What will it take to finally wean Europe off Russian gas? Can renewables help with grid stability? And is the EU making a mistake subsidising hydrogen?  This week on Cleaning Up, Michael Liebreich sits down with EU Energy and Housing Commissioner Dan Jørgensen to dissect the continent's energy transformation.  In this wide ranging interview recorded at the Berlaymont building in Brussels — the hom...

Renewables Are Here To Stay. Get Over It. | Ep211: Antonio Cammisecra 04.06.2025

The world's electricity system is transforming: We're integrating more and more variable renewables. Fossil plants are running fewer hours. Demand is growing everywhere, including in the developed world, as we electrify transport and heating, and AI data centers elbow their way onto the grid.  Some people find this very threatening but not Antonio Cammisecra, CEO of ContourGlobal. CounterGlobal is...

Is The Tide Turning On Hydrogen? Ep210: Andrew Forrest 28.05.2025

Billionaire iron magnate Andrew Forrest believes he's on the cusp of a breakthrough to decarbonise shipping and heavy industry using hydrogen.  As the Executive Chairman of the Fortescue, one of the world's largest iron ore companies, Andrew Forrest is not an easy to pigeonhole industrial billionaire. He built Fortescue into a hugely successful company, partly thanks to his belief in taking unconv...

Bond Vigilantes, Game Theory, And Why The US Shouldn’t Go It Alone - Ep209: Mohamed El-Erian 21.05.2025

Have the bond markets become a new form of global governance? Are we witnessing the end of US economic exceptionalism? And how does game theory relate to cooperation on net-zero? This week on Cleaning Up, Bryony Worthington sits down with renowned economist Mohamed El-Erian to unpack the complex intersections of global finance, politics, and climate change.  El-Erian offers insights into the curre...

Can You Run a Grid Entirely On Renewables? Ep208: Anders Lindberg 14.05.2025

Can You Run A Grid Without Fossil Fuels?  "Yes," says Anders Lindberg, President of Energy and Executive VP at Wärtsilä, on this week's episode of Cleaning Up. It'll just cost €65 trillion extra by 2050.  Anders' team at Wärtsilä has recently published its Crossroads to Net Zero report, which argues that keeping a little bit of flexible generation on the grid will save huge amounts of money as the...

Is Geothermal The Future For Oil & Gas? Ep207: Jamie Beard 07.05.2025

Geothermal seems to have found new favour under Donald Trump's presidency, but can it ever live up to its potential? Will the oil and gas industry reinvent itself before becoming obsolete? And how might geothermal energy change the global energy landscape? This week on Cleaning Up, Bryony Worthington talks to Jamie Beard, founder of Project InnerSpace, about why geothermal energy has never lived u...

Uniper Rising: Can Germany's Gas Giant Go Green? Ep206: Michael Lewis 30.04.2025

When Russia unleashed its illegal and unprovoked invasion of Ukraine in February 2022, gas prices in Europe spiked by a factor of 10, driving a wave of bankruptcies and restructurings of European energy companies. Uniper was one of those.  Uniper is one of Germany's largest energy companies. It is active across more than 40 countries and has 19.5 GW of power generation capacity to its name. It was...

Trump vs The Transition, The Pope’s Climate Legacy & The High Price of UK Electricity — Ep205 23.04.2025

In 100 short days, the world has transformed. Since the reelection of President Donald Trump, US federal climate policy has largely been abandoned, with the government seeking to reopen coal-fired power plants and lower environmental standards.  An escalating trade war and global tariffs has sent the rest of the world reeling and threatened the global financial system with collapse. China has come...

We Built a Solar System That's Saving Babies’ Lives — Ep204: Project Bo, Sierra Leone 09.04.2025

In Sierra Leone, a 20-minute power cut can be the difference between life and death for newborn babies.  In 2013, an extraordinary doctor called Dr Niall Conroy set up a neonatal intensive care unit at the Bo Government Hospital, in Sierra Leone's second largest city, and set about training the staff to give the best possible care to the desperately vulnerable babies who were admitted. But there w...

What Happened to Google's Climate Ambitions? | Ep203: Kate Brandt 02.04.2025

Google has one of the most ambitious climate targets in the tech world, but what happens if it falls short of its goals? How does the company balance innovation with environmental responsibility? And can AI really help reduce emissions?  This week on Cleaning Up, Bryony Worthington sits down with Kate Brandt, Google's Chief Sustainability Officer, to unpack these critical questions. Brandt offers...

Net Zero Isn’t Impossible, It’s The Key To UK Prosperity — Ep202: Emma Pinchbeck 26.03.2025

The UK is an extraordinary case study in how to cut greenhouse gas pollution successfully. Since 1990, the country has more than halved its greenhouse gas emissions, while the economy has grown by over 80%.  The Climate Change Act, passed in 2008, has helped steer the UK towards its net-zero goals, setting five yearly carbon budgets that are specifically designed to be ambitious but flexible, with...

Can Europe Survive the Transition To Renewables? Ep201: Nikos Tsafos 19.03.2025

How does Europe get cheap energy again? Are climate goals at odds with the need to remain economically competitive? Are we about to see an empowered and emboldened Europe, ready to take on China and the US? Barely five years into the 2020s, this decade is already shaping up to be one of the most turbulent since the Second World War. As we record this episode, the US has just slapped 25% tariffs on...

Making America Dumb Again: The Stakes of Slashing Climate Science — Ep200: Ralph Keeling & Ray Weiss 12.03.2025

As the U.S. swings a budgetary axe at the federal government, one of the biggest casualties is climate science. The National Oceanic and Atmospheric Administration (NOAA) faces a brutal 20% workforce reduction—jeopardizing critical research just when we need it most. So, what’s really at stake? And is Donald Trump Making America Dumb Again? This week on Cleaning Up, host Bryony Worthington takes u...

EVs & Heat Pumps: The Real Alternatives for Germany — Ep199: Patrick Graichen 05.03.2025

In February, Germany elected a new government. Friedrich Merz emerged as the new leader, but what are his energy and climate policies, and will Germany remain a climate leader in Europe and beyond? Joining Cleaning Up this week is Patrick Graichen, a former Energy and Climate minister in the last government, representing the Green Party. Prior to entering government, Patrick ran the think tank Ago...

⁠The Future of Clean Tech Under Trump — Ep198: Jigar Shah 26.02.2025

How can the U.S. government bridge the gap between clean energy innovation and large-scale deployment? Will the Trump administration accelerate progress or put up roadblocks for clean tech? And how can the U.S. stay competitive with China, which already holds a commanding lead in the sector?  Jigar Shah joins Cleaning Up fresh from his four-year tenure as Director of the U.S. Department of Energy'...

Listen to the Cleaning Up: Leadership in an Age of Climate Change podcast in Replaio

Radio and podcasts in one app - free, with no sign-up. Install today and do not miss the launch

Get it on Google Play

Replaio is not a podcast publisher; show names, artwork and audio belong to their authors and are distributed through public RSS feeds.