Episodes

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 bega...

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...

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 ...

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 ...

⁠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 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...

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 ...

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 devast...

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...

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 ...

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 trans...

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...

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 Wärtsi...

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...

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 ...

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...

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 Hospit...

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 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 ...

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 cr...

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 we...