Podcast profile
By Michael Liebreich, Bryony Worthington
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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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, ag
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 Australi
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 prod
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,
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 Much of that shortfall has been replaced by production from the vast oil and gas fields of Norway's North Sea continental shelf.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
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 wee
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 Dire
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
South and Southeast Asia face a different challenge to many developed economies. As the regions continue to grow, so too does demand for energy, transport and industry. The question is whether that growth can be powered by cleaner technologies from the start. In the second of our episodes recorded from Singapore, Micha
Australia is navigating an extraordinarily complex energy transition. It is both a major exporter of fossil fuels and a global leader in rooftop solar, while recent disruption to fuel supplies has reinforced the importance of energy security alongside decarbonisation. As the country prepares to co-host COP31 alongside
Singapore is one of the smallest countries in the world, yet plays a unique role as one of Asia’s main financial and oil refining hubs. So how is it using its influence to help or hinder the transition? Ravi Menon has spent his career at the heart of Singapore’s economic and financial strategy, serving as Managing Dire
Today, Cleaning Up launches its Deep Dive Australia series. Featuring conversations with nine leaders of the climate and clean energy scene, the series explores where Australia is leading the world, where it is not, and how it got there. This is an important moment for Australia. The country was extraordinarily exposed
Since Donald Trump returned to the Presidency in 2025, the US has become increasingly isolationist. It has pulled out of the Paris climate agreement and the IPCC, left the World Health Organisation, as well as a whole host of other international organisations and agencies. So, when President Trump leaves the White Hous
Professor Ning Li has spent decades at the intersection of energy, technology and industrial strategy. A nuclear engineer, complexity scientist and founding Dean of the School of Energy at Xiamen University, he is also credited with coining the term "Small Modular Reactor" nearly 20 years ago. In this wide-ranging conv
Today, wind power accounts for just under 10% of all electricity globally, around the same as solar, recently overtaking nuclear power. 20 years ago, the figure was under 1%. In that time, the sector’s leadership has moved around from Europe to the US to Asia, but one specialist European manufacturer has stayed in the
For more than 15 years, the RCP8.5 climate scenario has shaped headlines, policy decisions, financial stress tests and public understanding of climate risk. Now, the scientific community has declared it implausible. So what comes next? This week on Cleaning Up, Michael Liebreich welcomes Professor Roger Pielke Jr. back
As electricity demand rises and renewable generation continues to expand, the same question keeps arising: how do we keep power systems reliable, affordable and resilient? This week, Michael Liebreich is joined by Håkan Agnevall, CEO of Wärtsilä, to discuss the changing role of flexible generation in modern electricity
In this special episode of Cleaning Up from San Francisco Climate Week, Michael Liebreich and Bryony Worthington unpack the geopolitical shocks reshaping the global energy transition. From escalating tensions in the Gulf and their impact on oil and LNG markets, to China’s accelerating electrification revolution, the co
The energy system is not about supply and exports and generation and distribution. It's about how we use energy in our daily lives and workplaces. The so-called energy trilemma, affordability versus reliability versus environmental performance looks very theoretical in the boardrooms of an NGO or a consulting company.
Every single scenario for the future that looks at a cleaner energy system has electrification growing to 60, 70, 80% or more, and yet we don't make rapid progress. Why? One of the reasons we don't make progress lies in narratives and culture wars. We hear about heat pumps that don't work, we hear about electric vehicl
This week Cleaning Up is back in Brussels, with a deep dive into European energy policy as the continent grapples with the reality of ambitious climate targets, very high energy prices and the vulnerabilities of first Russia's attack on Ukraine, and Israel and the US's recent attack on Iran. Michael Liebreich sits down
What happens when global energy supply chains can no longer be trusted? Has the U.S. given up its edge in the clean energy race to China? And can politics keep up with the speed of the energy transition and the rise of AI? This week on Cleaning Up, Michael Liebreich sits down with former U.S. Energy Secretary Jennifer
The news agenda this year has been entirely dominated by energy related stories, whether it's the war in Europe being pursued by Russia — formerly Europe's most significant energy provider — the U.S. capturing the head of state of Venezuela — which has some of the biggest oil reserves in the world — or the ongoing atta
How should a central bank respond to energy shocks? Will high oil and gas prices bolster the uptake of renewables? And what is the true cost of net zero 2050? This week on Cleaning Up, host Michael Liebreich sits down with Pierre Wunsch, Governor of the National Bank of Belgium and member of the European Central Bank’s
What happens if we’re underestimating the speed and scale of climate risk? This week on Cleaning Up, Bryony Worthington sits down with Ricken Patel, Principal at Climate Hub & Founder of activist network Avaaz, to explore how to build successful climate movements, and the case for research into geoengineering. Ricken a