

Co-host, Cleaning Up Podcast / Lord
Baroness Bryony Worthington is co-host of Cleaning Up. She is a Crossbench member of the House of Lords, who has spent her career working on conservation, energy and climate change issues. Bryony was appointed as a Life Peer in 2011. Her current roles include co-chairing the cross-party caucus Peers for the Planet in the House of Lords and Co-Director of the Quadrature Climate Foundation.
Her opus magnum is the 2008 Climate Change Act which she wrote as the lead author. She piloted the efforts on this landmark legislation – from the Friends of the Earth’s ‘Big Ask’ campaign all the way through to the parliamentary works. This crucial legislation requires the UK to reduce its carbon emissions to a level of 80% lower than its 1990 emissions. She founded the NGO Sandbag in 2008, now called Ember. It uses data insights to advocate for a swift transition to clean energy. Between 2016 and 2019 she was the executive director for Europe of the Environmental Defence. Prior to that she worked with numerous environmental NGOs. Baroness Bryony Worthington read English Literature at Cambridge University
Bryony Worthington and Michael Liebreich give their analysis of the impact of the conflict in Iran on global energy markets. How will it impact the Middle East, Europe, Asia, the US, and will it force countries back to coal, ...
This week on Cleaning Up, host Bryony Worthington sits down with investor and energy strategist Laurent Segalen, co-host of the Redefining Energy podcast, for a sweeping conversation that spans carbon markets, uranium trading...
How do we model the climate system? How warm will 2026 be? And can geoengineering be anything more than a bandaid? This week on Cleaning Up, Bryony Worthington sits down with leading climate scientist Dr. Zeke Hausfather on t...
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 importa...
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 f...
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 p...
What will be the long-term impact of the US’s great leap backward on clean energy? How will the emergency of China as an electrotech giant reshape geopolitics? And what will be the defining trends and technologies of 2026? In...
What happens when a nation’s energy security rests on volatile global gas markets? Why does the UK pay market prices for some of the world’s cheapest-to-produce gas? And is now the moment to rethink decades of “leave it to th...
What happens when the world’s most ambitious climate state runs head-on into a hostile federal government? Can California still lead the clean-energy transition while battling rising costs, wildfires and the Trump government’...
Global shipping contributes about 3% of global greenhouse gas emissions, equivalent to the total emissions of Japan or Germany. The sector, including its contribution to climate change, is governed by the International Mariti...
This summer, Michael Liebreich wrote two essays under the title of the Pragmatic Climate Reset. The first challenged the idea that the clean energy transition has failed. And the second challenged the clean energy and climate...
What does it take for India to deliver electricity to hundreds of millions while simultaneously building a fast-growing clean energy system? Can it overcome its fossil dependence to secure its energy futures with renewables? ...
Why should we care about coral reefs? What happens when they collapse? And is there still hope for their survival? In this episode of Cleaning Up, Bryony Worthington sits down with coral reef ecologist Dr. Katharina Fabricius...
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...
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 B...
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 o...
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 ...
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 e...
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 co...
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 s...
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 chan...
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 envir...
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...
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...
How can climate activists be more successful in 2025? And where have they gone wrong? Kumi Naidoo has a storied career as an activist. At just 15 years old, he started out as an anti-apartheid campaigner and organiser in Sout...
Aviation accounts for around 2-3% of global emissions, and is showing no sign of decreasing. There has been a lot of focus on replacement fuels, but no real paradigm shift in the industry. Anders Forslund has a plan to change...
How can $10 billion be spent most effectively to address the climate and nature crises? What role can philanthropy play in driving systemic change? And how can new technologies like AI be leveraged to accelerate climate solut...
Happy New Year and welcome to Season 14 of Cleaning Up. From the future of nuclear to growing tensions between China and the USA, we're off with a bang with a conversation between hosts Michael Liebreich and Bryony Worthingto...
Climate philanthropies are playing an increasingly important role in funding climate action. In 2023, an estimated $9-16 billion was spent by philanthropies on programs to mitigate climate change. But how do they choose how t...
Is China's lead in clean technologies insurmountable? How will the Trump presidency shape relations with China? And when will China's emissions peak? Fatih Birol, head of the International Energy Agency, has said that 'almost...
How will the Trump administration's policies impact the clean energy transition in the United States? What will be Elon Musk's role in shaping climate policy? And what are the geopolitical implications of the US withdrawing f...
How difficult is it to power a boat just with electricity? Is an electric outboard as reliable as a fossil-fuel one when taken out to sea? And just how much better is an electric engine for reducing pollution and noise? Aroun...
China has taken a commanding lead in manufacturing solar panels, wind turbines, electric vehicles and batteries, and is central to the green energy transition. Now, the US is hoping to catch up, and has spent almost $500 bill...
As climate impacts mount, pressure is building on policymakers to find ways to alleviate the crisis. One controversial option being explored is geoengineering - direct human interventions to cool the planet. But can we safely...
In the final episode of Season 12, hosts Michael Liebreich and Bryony Worthington reflect on the key conversations and developments in the net-zero transition over the past three months.
Who are the merchants of doubt and how can their narrative be countered? How much money does it cost to get someone to take action on climate change? This week on Cleaning Up, Bryony Worthington is joined by John Marshall, th...
With the UK general election tomorrow, the Cleaning Up team sits down with Dr Simon Evans of Carbon Brief to run through each party's manifesto, and what they say about UK climate and energy policy. With Labour widely predict...
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 ...
Has science cracked the code on mass producing realistic meat substitutes? Or are lab-gown alternative proteins an impossible dream? In this week's episode of Cleaning Up, Baroness Bryony Worthington sits down with president of the Good Food Institute, Bruce Friedrich, to explore the future of food…
China's policies that direct capital towards cleaner industries have been game changing, and this week we're continuing the China theme, sharing two conversations Bryony had earlier this month at a conference at Xiamen University in Fujian Province. China's role in the clean energy transition could…
Up this week is Simon Holmes à Court, the Australian investor and philanthropist with a passion for using data to change the world. In 2022, the federal elections in Australia delivered an upset, as around a third of the electorate turned their back on the established parties and voted in seven…
How can we build a more united climate movement? What should be the role of geoengineering? And how can indigenous voices be brought into the climate conversation? Bryony puts these questions to model, actor, director, ambassador and businesswoman, Lily Cole.