Controversial efforts at space tourism, such as by Jeff Bezos’ Blue Origin, have reignited old debates about the purpose of space exploration. What relevance does the world beyond our planet have to anyone apart from billionaires and their super-rich clients? Without defending the growing commercialisation of the space sector, environmental historian Professor Dagomar Degroot offers some answers. In conversation with Alasdair, he examines the solar system's influence on humanity - and h...

In 2006, the Masdar City project was launched in the United Arab Emirates. Supported by $22 billion in state-funding, it aimed to be the world’s most sustainable city. Situated 6km away from Zayed International Airport, neighbouring a Formula 1 racetrack and golf course, Abu Dhabi’s eco-utopia is full of contradictions. Bertie discusses why oil-rich Gulf states like UAE and Saudi Arabia are investing in sustainability with Gökçe Günel, Associate Professor in Anthropology at Rice University. G...

Global heating in 2024 exceeded 1.5C above pre-industrial levels, but most governments continue to extend fossil fuel use. Are we now in a political situation where decarbonisation and mitigation efforts are failing? Is climate disaster irreversible? Alasdair MacEwen discusses these questions with Wim Carton, who returns to the podcast following publication of his new book, The Long Heat: Climate Politics When It’s Too Late, co-authored with Andreas Malm. Wim also explains the desperate...

As the energy transition accelerates, critical minerals have become increasingly important, and the priorities of extraction for countries in the Global North are beginning to shift. The U.S., EU, and others are now exploring the possibility of on-shoring critical mineral mining - potentially bringing a divisive industry closer to home. This week, Alasdair talks to extraction expert Dr. Thea Riofrancos, who explains the tension between the harmful consequences of mining and the k...

Alasdair speaks with Jessica F. Green, author of the new book Existential Politics: Why Global Climate Institutions Are Failing and How to Fix Them, about why thirty years of climate policy have failed to reduce emissions. They discuss why carbon pricing has been largely ineffective, how net zero pledges are misleading, and why focus must shift from measuring emissions by the tonne to measuring profitability. Jessica is a professor of Political Science at the University of T...

Bertie speaks with Mark Parrington about this year’s record-breaking wildfires, and the health implications of increasing air pollution. Mark is a senior scientist at the EU’s Copernicus Atmosphere Monitoring Service, where he uses satellite imagery to monitor wildfire emissions in real-time. He tells Bertie about the scale of the recent surge in wildfires across Europe, North America, and the Arctic, and the health impacts of particulate matter and long-range pollution transpor...

Next week, negotiators meet in Geneva to finalise the UN’s historic Global Plastics Treaty, originally announced in 2022. The additional session was scheduled after years of tense international disagreement. Bertie talks to Punyathorn ‘Arm’ Jeungsmarn, Plastics Campaign Researcher at the Environmental Justice Foundation. Arm attended previous rounds of the UN talks, and recently worked on research about problematic solutions to plastic pollution. Arm discusses his experience of the negotiatio...

In April, the International Maritime Organisation held the 83rd session of its Environment Protection Committee, where it established a system of penalties and rewards to advance shipping decarbonisation. This follows 2023 industry commitments to reduce emissions by 30% by 2030. Alasdair speaks with Simon Bullock about whether the recent agreement is strong enough to meet climate goals and explores practical actions that can be taken now without relying on greenwashing, expensive infras...

Yesterday, the U.S. Congress approved President Donald Trump's so-called 'Big Beautiful Bill'. This controversial federal budget is set to defund a huge proportion of the nation's climate and environmental science - what will the impacts be for America, and for global efforts against the climate crisis? Bertie spoke to John Holdren, who served as President Barack Obama's Director of the Office of Science and Technology Policy from 2009-2017, becoming the longest-serving Science Advisor to the...

In 2022, Gustavo Petro became the first left-wing candidate to win the Colombian presidential election. During his election campaign, Petro pledged to end the granting of new oil and gas exploration contracts, a commitment his government has so far succeeded in maintaining. This week, Alasdair speaks with third-year doctoral student Guy Edwards who has interviewed over 50 people - from former government ministers to academics and industry representatives - about the impact of Petro’s pl...

Germany's 2025 federal election saw the far-right Alternative für Deutschland (AfD) double its support to 20.8%, becoming the second largest party, while the Green Party fell from 14.8% to 11.6%. The AfD denies climate science and opposes environmental policies on economic grounds. This week, Alasdair interviews academic Felix Schulz, whose recent research has examined public attitudes toward climate policy across six countries - three in the global north and three in the global south. ...

From widespread industrial pollution to emerging as a green powerhouse, China’s economic evolution shows how grassroots activism has pushed ecological issues to the political forefront. Tianjie and Bertie discuss China’s green evolution, Pan Yue’s introduction of environmental nationalism (now championed by Xi Jinping), flawed provincial reporting, and whether the country’s model can be sustained. Ma Tianjie is a freelance writer and environmental activist based in Beijing. He wo...

A UK government agency recently announced it would spend £57 million on a controversial project to develop geoengineering technologies. The Exploring Climate Cooling Programme will fund 21 international research teams to conduct small-scale, controlled outdoor experiments to thicken Arctic sea ice and brighten clouds, to prevent global warming from increasing past irreversible tipping points. Geoengineering has long been a point of contention amongst scientists, environment...

On 6th June 2023, the Nova Kakhovka dam was breached while under Russian occupation, releasing a wave of toxic pollution into Ukraine’s rivers. The number of casualties – both human and animal – may never be fully known. Ukraine is one of a small number of countries to include ecocide in its domestic criminal code, and the destruction of Kakhovka Dam is one of hundreds of incidents that prosecutors are studying while building environmental damages cases against Russia. On the global sta...

In 2022, the Swedish government granted an exploitation concession to Jokkmokk Iron Mines AB — a subsidiary of British company named Beowulf Mining — to develop an open-pit iron mine in Northern Sweden. The decision has been opposed by both Indigenous and environmental activists, who have expressed concerns about the mine’s impacts on Saami communities and the surrounding ecology. Bertie speaks to Tor Tuorda about the long history of extraction and exploitation in the region, the erasure of S...

Nearly half of the global agriculture market is controlled by four companies. This level of concentration - driven by decades of mergers and poor regulation - has allowed agribusiness “titans” to dominate the farming sector. Alasdair talks to Dr Jennifer Clapp, author of a new book about corporate domination of the farm sector and why it matters. Alasdair and Jennifer discuss how and why mass-merging has led to market distortions and high prices, and what solutions could improve the st...

It is becoming common for the fossil fuel industry to sue governments that attempt to decarbonise over “lost future profits.” They do so via an obscure part of international law called international-state dispute settlements (ISDS) that can allow them to extract billions in public money. Alasdair speaks to Eunjung Lee, a senior policy advisor at think tank E3G. The two discuss how ISDS began, how the international treaties came to being predatory, and what measures countries should take...

With India kicking off 2025 with an historic space-docking experiment, and Elon Musk's growing power in the US government raising questions over the future of his spacecraft and satellite companies SpaceX and Starlink, we may be at the dawn of a new era for space exploration. Unlike the 20th Century Space Race, however, it will likely be private companies that cross new mildstones - not public agencies. But who will regulate mining on the moon and tourism in space, and what are the environmen...

Alasdair speaks to journalist Margot Gibbs about her investigation into a US government-funded PR firm that profiled pesticide scientists. Last autumn, Lighthouse Reports - in collaboration with media partners across Europe - published an investigation into v-Fluence, a US-based PR firm that worked to discredit anti-pesticide scientists and campaigners. Alasdair speaks to Margot Gibbs, a journalist who led the investigation, about its findings and what it reveals about the agro-chemical...

Russia's invasion of Ukraine in 2022 shocked global energy markets, and changed the EU's long and short-term plans for decarbonisation. But how have three years of conflict changed Ukraine's own policies and plans around energy security and net zero? Bertie discusses this issue with Ukrainian economist Maksym Chepeliev, Research Assistant Professor at the Center for Global Trade Analysis, Purdue University, USA. Read Professor Chepeliev's research: 'Net-Zero Transition in Uk...