About this podcast
Asking tough questions about the science, technology, and politics of climate change, two climate researchers challenge leading experts on one of the defining issues of our age. Every two weeks, they explore how we can fight global warming by cutting greenhouse gas emissions, carbon removal, adaptation and solar geoengineering. Dr. Jesse Reynolds and Dr. Pete Irvine consider the roles of computer models and persuasive narratives, economics and public policy, and renewable energy and national security in the climate debate, and look beyond to issues such as biotechnology and international development.
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Questions or comments? Email [email protected] or tweet @ChalClimate
See more information on Jesse Reynolds and Pete Irvine.
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music by Peter Danilchuk @clambgramb (IG/Twitter).
Episodes
The newest 20 of 53 episodes
- Farewell · 8 minPete and Jesse must bring Challenging Climate to a close. Since starting the podcast almost three years ago, we have each taken on more professional responsibilities and no…
- 50. Maarten Albers on the Nitrogen Crisis in the Netherlands · 44 min · Episode 50Our guest is Maarten Albers, a journalist who reports on agriculture and food for the Volkskrant, one of the Netherlands’ leading newspapers. In today's episode, we draw our…
- 49. Gwynne Dyer on Intervention Earth: climate mitigation, CDR & SRM · 47 min · Episode 49Our guest is Gwynne Dyer, an author, columnist, broadcaster and lecturer on international affairs. In this episode, we discuss the key messages from his new book Intervention…
- 48. Jonathan Blake and Nils Gilman on planetary governance · 51 min · Episode 48Jonathan Blake is Associate Director at the Berggruen Institute, where he leads the Planetary Program. Nils Gilman is Senior Vice President at the Berggruen Institute and Deputy…
- 47. Shuchi Talati on ethics and governance of solar geoengineering · 52 minToday’s guest is Dr. Shuchi Talati, a climate technology and governance expert and the founder of The Alliance for Just Deliberation on Solar Geoengineering. In this episode, we…
- 46. Ulrike Lohmann on clouds, aerosols and solar radiation modification · 45 min · Episode 46Today’s guest is Ulrike Lohmann, Professor of Experimental Atmospheric Physics in the Institute for Atmospheric and Climate Science at ETH Zurich. Lohmann is also the Principal…
- 45. Benjamin Sovacool and Chad Baum on global trends in public perceptions of climate technologies · 54 min · Episode 45In this episode, we speak with Dr. Benjamin Sovacool and Dr. Chad Baum, about their newly published, high-impact paper, “Public Perceptions and Support of Climate Intervention…
- 44. George Monbiot on environmentalism and climate activism · 48 min · Episode 44George Monbiot is a renowned British author, The Guardian Columnist and environmental activist. George is the author of more than a dozen books, the most recent of which is…
- 43. Janos Pasztor on global climate policy and geoengineering · 51 minThis episode’s guest is Janos Pasztor. He has four decades of work experience in the areas of energy, environment, climate change, and sustainable development, including roles as…
- 42. David Stainforth on climate models and uncertainty · 42 min · Episode 42David Stainforth is a Professorial Research Fellow at the London School of Economics. David has had a long career studying the climate problem and the challenges of making…
- 41. David Keith on Climate Systems Engineering · 43 minDavid Keith is a Professor in the Department of Geophysical Sciences at the University of Chicago and the Founding Faculty Director of the Climate Systems Engineering initiative…
- 40. Jennifer Allan on global climate governance and the COP28 agenda · 52 min · Episode 40Jennifer Allan is a Strategic Adviser and Team Leader with Earth Negotiations Bulletin, and Lecturer at Cardiff University. Jen has attended roughly 40 UN conferences where…
- 39. Greg Nemet on how solar became cheap (with Energy vs Climate) · 57 minToday’s episode is brought to you in collaboration with our friends at the Energy vs Climate podcast. Energy vs Climate breaks down the trade-offs and hard truths of the energy…
- A brief podcast review and update · 9 min · Episode 39As we break for the summer, listen here for some highlights of our previous episodes and catch up on the ones you've missed. See you in October! Support the show Subscribe for…
- 38. Richard Tol on Climate Economics: the cost of carbon, geoengineering & IPCC · 56 min · Episode 38Richard S.J. Tol is a Professor at the Department of Economics, University of Sussex and the Professor of the Economics of Climate Change, Institute for Environmental Studies and…
- 37. Emma Marris on our rambunctious garden: wilderness and human influence on nature · 43 min · Episode 37Emma Marris is an environmental writer and Institute Fellow at the UCLA Institute of the Environment and Sustainability. She has also written for National Geographic, the…
- 36. John Moore on the melting cryosphere and glacier geoengineering · 51 min · Episode 36Dr John Moore is a Research Professor at University of Lapland, Finland and Chief Scientist of GCESS at Beijing Normal University. His research focuses on geoengineering, sea…
- 35. Steve Smith on net zero pledges and CDR strategies & tech · 1 h 2 min · Episode 35Dr Steve Smith is the Executive Director of CO2RE, as well as Executive Director of the Oxford Net Zero initiative, based at the University of Oxford’s Smith School of Enterprise…
- 34. Heleen de Coninck on the IPCC, climate tech & a just Net Zero transition · 44 min · Episode 34Dr Heleen de Coninck is a Professor of Socio-Technical Innovation and Climate Change at Eindhoven University of Technology, and Associate Professor in Innovation Studies and…
- 33. David Fahey on the Montreal Protocol, ozone depletion and SRM · 53 min · Episode 33Dr David Fahey is the Director of the Chemical Sciences Laboratory in the National Oceanic and Atmospheric Administration (NOAA), and he also serves as a Co-Chair of its the…







