Cleaning Up: Leadership in an Age of Climate Change

Why does Africa, home to 18% of the world’s population, receive just 1% of global energy investment? What’s stopping money from flowing to the continent when it has such good wind and solar potential? And what would it take to unlock an energy boom that benefits both Africa and Europe?
Spread across 54 countries and with a combined GDP the size of Italy, Africa's population is young and growing rapidly. It is set to grow from 1.5 billion people today to 2.5 billion by 2050. And it could reach 4 billion by 2100, accounting for two out of every five people on the planet.  Africans want and deserve the same prosperity shared by richer parts of the world. And that means investment. So why is investment not flowing? 
This week on Cleaning Up, Michael Liebreich speaks with Clemens Calice, CEO and founder of Cygnum Capital, which invests around $1.3 billion in Africa’s energy transition. Together they explore why risk perception and outdated models are slowing investment across Africa. 
From rooftop solar for factories and mines, to electric motorbikes, power pools, and the geopolitics of gas, this episode makes the pragmatic case for how Africa can leapfrog to a cleaner, more resilient energy future.
Leadership Circle:
Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Cygnum Capital, Davidson Kempner, EcoPragma Capital, EDP, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live.
Discover more:
Cygnum Capital: https://www.cygnumcapital.com
Episode 196, Lucy Heintz of Actis: https://www.youtube.com/watch?v=nhGDI_0QIHg
Episode 216, Daniel Calderon of Alcazar Energy: https://www.youtube.com/watch?v=WMhFOWO4C84
Episode 120, Ana Hajduka, founder of Africa Green Co.: https://www.youtube.com/watch?v=ktWh_G6Sw_g

How do we build a clean energy system while bringing UK bills down? Can the UK’s landmark Climate Change Act stand up to a fractured climate politics? And does increasing global instability make home-grown energy more important than ever?
This week’s episode of Cleaning Up comes to you from inside of the UK’s Department for Energy Security and Net Zero, where last week Bryony Worthington sat down with Katie White MP, the UK’s recently appointed Climate Minister, to discuss her new role, what she’s excited about, and current challenges that she’s facing.
Katie and Bryony met more than 20 years ago when they worked together at Friends of the Earth on the campaign for the Climate Change Act. In her new role, Katie is now the minister responsible for carbon budgets and net zero, alongside other climate priorities. It was only 12 months after she was elected as an MP for Leeds North West that Katie was promoted Climate Minister, in what she’s described as her dream job.
From their shared history campaigning for the Climate Change Act to today’s challenges of energy affordability, electrification and public consent, Katie and Bryony unpack what’s working, what isn’t, and how to connect climate action to lower bills, stronger security and a better quality of life.
Leadership Circle:
Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Cygnum Capital, Davidson Kempner, EcoPragma Capital, EDP, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live.
Discover more:
Katie White biography and brief: https://www.gov.uk/government/people/katie-white
Katie White’s constituency website: https://katiewhitemp.org.uk/

Is the link between oil and geopolitics starting to diminish? Has climate consensus fractured just as clean energy hits escape velocity? And are batteries, not barrels, becoming the true source of power and security?
In the first episode of Season 17 of Cleaning Up, Michael Liebreich and Bryony Worthington unpack a turbulent start to 2026. From shock geopolitical moves in the Americas and riots in the Middle East to the curious calm of a $60 oil price, they explore whether fossil fuels still move the world the way they once did. 
The conversation ranges from the collapse of climate multilateralism and Europe’s energy malaise to the unstoppable rise of electrification, batteries, and system-level clean energy solutions across China, India, Africa, and the “rest of the world.”
Leadership Circle:
Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live.
Discover more:
The Electrification Staircase: https://www.watts-next.eu/ 
Kingsmill Bond on Cleaning Up: https://www.youtube.com/watch?v=G2bsoCOznXk
Arunabha Ghosh on Cleaning Up: https://www.youtube.com/watch?v=qMrn-JewoCo
Rachel Kyte on Cleaning Up: https://www.youtube.com/watch?v=V1m2lm2n_EE
Catch up on Season 16 of Cleaning Up: https://www.youtube.com/playlist?list=PLe8ZTD7dMaaDWQkhmAsaQ28p0h3Lw5I6v

This episode was originally broadcast in June 2023, watch the episode on YouTube here. Cleaning Up will return with new episodes January 7th, 2026. 
Tzeporah Berman has been leading environmental campaigns in her native Canada and beyond for over thirty years. Today, she is Chair of the Fossil Fuel Non-Proliferation Treaty, and International Program Director at Stand.earth, the environmental organisation that she co-founded. 
Tzeporah was formerly co-director of Greenpeace’s Global Climate and Energy Program, and her success campaigning against fossil development has seen her dubbed “Canada’s Queen of Green”. Tzeporah and Michael take in everything from helping turn Meta and other tech giants off coal and onto renewables, fighting fossil and pipeline expansion in Alberta, and whether a non-proliferation treaty could be the solution for a managed decline of fossil fuel use.
Read more:
The fossil fuel non proliferation treaty website: https://fossilfueltreaty.org

This episode was originally broadcast in June 2024.
As the world transitions away from fossil fuels, one of the biggest challenges is decarbonizing industrial processes that require consistent, reliable sources of energy to produce high-temperatures. Typically these processes run on fossil gas, but now thermal batteries offer a solution by using electricity to store renewable energy in the form of heat. 
Anand Gopal, Executive Director of Policy Research at Californian think tank Energy Innovation, joins Baroness Bryony Worthington to discuss his team's research on using thermal batteries to provide heat for manufacturing. Or as he calls them, hot rocks in a box. By storing intermittent solar or wind energy as the heat of molten salts or crushed rocks, thermal batteries can deliver reliable heat on-demand. 
While the tech is almost at commercial availability, there's still one big obstacle: cost. In many countries it is still much cheaper to use gas over electricity, and that makes powering up thermal batteries uneconomical. So what needs to be done to employ them at scale? And will they take the wind out of hydrogen's sails? Find out on this week's episode of Cleaning Up. 
Read more: 
Energy Innovation
Industrial Thermal Batteries: Decarbonizing U.S. Industry While Supporting a High-Renewables Grid
Energy Innovation's report on electric vehicle leasing
Energy Innovation's report on electric vs gas cars
Energy Innovation's report on industrial heat in China
Energy Innovation's report on electrification of industrial heat