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Cleaning Up: Leadership in an Age of Climate Change

Cleaning Up: Leadership in an Age of Climate Change

Michael Liebreich, Bryony Worthington 282 Episodes Aug 19, 2026

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!

Episodes

The Next Frontier of Electrification? Industrial Heat | Ep271: James Macnaghten
The Next Frontier of Electrification? Industrial Heat | Ep271: James Macnaghten Aug 19, 2026 00:39:36 Around the world, factories making food, drink, pharmaceuticals and other everyday products rely on steam, often produced by fossil-fuel boilers. James Macnaghten, founder and CEO of Caldera, is betting that thermal batteries can provide a cheaper and more flexible alternative that stores electricity as heat, and delivers steam on demand. This week on Cleaning Up, Bryony Worthington visits Caldera
How Much Better Can Solar Get? Deep Dive Australia 08: Martin Green
How Much Better Can Solar Get? Deep Dive Australia 08: Martin Green Aug 17, 2026 00:52:28 Solar was once dismissed as a marginal technology. Today, it is transforming the global energy system, and few people have done more to make that possible than Professor Martin Green. Innovations developed by Green and his research group can now be found in over 90% of all the solar panels in use today One of the pioneers of modern solar power, Green’s research has helped make solar panels dramati
AI Has An Electricity Problem | Ep270: Arshad Mansoor
AI Has An Electricity Problem | Ep270: Arshad Mansoor Aug 12, 2026 01:08:31 Will AI break the grid? As hyperscalers race to build ever-larger data centres, electricity demand is soaring. The question is no longer whether power demand will grow, but by how much, how quickly, and whether the grid can deliver. This week, Michael Liebreich is joined by Arshad Mansoor, President & CEO of the Electric Power Research Institute (EPRI), one of the world's leading energy research o
How Renewables Are Replacing Australia's Ageing Coal Fleet | Deep Dive Australia 07: Paul Simshauser
How Renewables Are Replacing Australia's Ageing Coal Fleet | Deep Dive Australia 07: Paul Simshauser Aug 10, 2026 00:48:27 Australia has one of the world's fastest-moving electricity systems. It leads the world in rooftop solar, has deployed grid-scale batteries at extraordinary speed, and is now starting to replace its ageing coal fleet with cleaner sources of energy. But as renewable costs rise and electricity demand grows, can the transition remain affordable while maintaining a reliable power system? This week on
The Unseen Agents of Climate Change | Ep269: David Kirchman
The Unseen Agents of Climate Change | Ep269: David Kirchman Aug 5, 2026 01:02:07 Microbes rarely feature in discussions about climate change, yet they play a central role in regulating greenhouse gases through the Earth's carbon, methane and nitrogen cycles. As the climate changes, understanding these natural processes is becoming increasingly important to develop new approaches to clean energy, agriculture and emissions reduction. This week on Cleaning Up, Bryony Worthington
Why The Transition Hasn't Made Australians Rich Yet | Deep Dive Australia  06: David Pocock
Why The Transition Hasn't Made Australians Rich Yet | Deep Dive Australia 06: David Pocock Aug 3, 2026 00:52:31 David Pocock is one of Australia's most influential politicians, working as the Senator of the Australian Capital Territory. He brings a distinctive perspective to some of the country's biggest debates, from climate policy and energy security to democratic reform and the future of work. A former captain of the Australian rugby team, David entered politics after years of speaking out on issues incl
The Crisis Forcing An Energy Revolution | Ep268: Jonathan Maxwell
The Crisis Forcing An Energy Revolution | Ep268: Jonathan Maxwell Jul 29, 2026 01:08:56 The UK is heavily exposed to global energy markets and has some of the highest electricity prices in Europe. At the same time, vast amounts of heat generated across industry and infrastructure go unused. Whether it should be called "waste" is a matter of debate, but could making better use of the energy we already produce be one of the biggest untapped opportunities in the energy transition? This
Can Australia Become A Clean Tech Superpower? Deep Dive Australia 05: Ross Garnaut
Can Australia Become A Clean Tech Superpower? Deep Dive Australia 05: Ross Garnaut Jul 27, 2026 00:57:32 Across huge swathes of the global economy, clean solutions are already cheaper than their fossil alternatives, and so a carbon price isn’t needed. But in other sections of the economy, the costs of green tech are higher, and so carbon pricing will be needed to make them cost competitive. But what should that price be, and how can it be successfully implemented? This week on Cleaning Up, Michael Li
How Norway Became A Global Gas Giant | Ep267: Anders Opedal
How Norway Became A Global Gas Giant | Ep267: Anders Opedal Jul 22, 2026 01:14:27 At the beginning of 2022, Europe was sourcing around 40% of its gas from Russia. By the end of this year, no more gas should be flowing from Russia into Europe.  Much of that shortfall has been replaced by production from the vast oil and gas fields of Norway's North Sea continental shelf. And this year, the closure of the Strait of Hormuz again highlighted the importance of Norway to Europe's res
Is Australia Finally Turning Its Back on Coal? Lily D'Ambrosio | Deep Dive Australia 04
Is Australia Finally Turning Its Back on Coal? Lily D'Ambrosio | Deep Dive Australia 04 Jul 20, 2026 00:51:30 Victoria is undertaking one of Australia's most ambitious electricity transitions. The state is aiming for 65% renewable electricity by 2030 and 95% by 2035, replacing ageing coal-fired power stations with renewable electricity, batteries and offshore wind while keeping the lights on and consumers' bills down. This week on Cleaning Up’s Deep Dive Australia, Michael Liebreich is joined by Lily D'Am
Batteries Are The Killer Tech Of The Energy Transition | Ep267: Alex Shoer
Batteries Are The Killer Tech Of The Energy Transition | Ep267: Alex Shoer Jul 15, 2026 01:01:14 China transformed solar from one of the world's most expensive energy technologies into the cheapest source of electricity in just a couple of decades. And now it’s doing the same with batteries, with prices plummeting around the world. This week on Cleaning Up, Bryony Worthington is joined by Alex Shoer, Managing Director of GridVest, who spent almost a decade building renewable energy businesses
Are Solar And Batteries Undermining Australia’s Grid? Deep Dive Australia 03: Marc England
Are Solar And Batteries Undermining Australia’s Grid? Deep Dive Australia 03: Marc England Jul 13, 2026 00:56:02 Australia's electricity networks are entering a new era. As rooftop solar, battery storage and electric vehicles demand reshape the grid, the role of distribution networks is changing from simply delivering electricity to actively enabling a smarter, more resilient and affordable energy system.  For the third episode of our Deep Dive Australia series, Michael sits down with Marc England, CEO of Au

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