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Climate Chat
Climate Chat episodes
- What Politics Can & Can't Do for Climate with Jigar ShahIn this Climate Chat episode, we interview Jigar Shah about his experience running the Department of Energy's Loan Program Office during the Biden administration.Jigar Shah is a solar pioneer and clean energy entrepreneur with over 25 years of experience. He's known for founding SunEdison in 2003, which pioneered “no money down” solar and became the world's largest solar services company. He co-founded Generate Capital in 2014, an investment platform that finances sustainable infrastructure across various sectors. Shah has also held leadership roles at the Department of Energy and the Carbon War Room. From 2021 to 2025, Jigar ran the Department of Energy's Loan Program Office.Jigar's Wikipedia page: https://en.wikipedia.org/wiki/Jigar_ShahFollow Jigar on Bluesky: @jigarshahdc.bsky.socialFollow Jigar on Twitter/X: @JigarShahDCPlease Like and Subscribe!Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.Follow Dan Miller on X/Twitter: @danmiller999Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.socialLeon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:https://www.researchgate.net/profile/Leon-SimonsFollow Leon on X/Twitter: @LeonSimons8 and Bluesky: @leonsimons.bsky.socialFollow Leon on Patreon: https://www.patreon.com/c/LeonSimons/homeFollow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.socialFollow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.socialYou can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.For more Climate Chat episodes, see our YouTube home page:https://www.youtube.com/@climatechatFor recent YouTube Live Climate Chat programs:https://www.youtube.com/@climatechat/streams1 hr 29 min
- Climate Politics When It's Too Late with Wim CartonIn this Climate Chat episode, we interview author and professor Wim Carton about his new book, co-authored with Andreas Malm, titled: "The Long Heat: Climate Politics When It's Too Late." The book focuses on climate adaption, negative emissions, and solar geoengineering and critiques them for being used as excuses to avoid rapid emissions reduction.Wim Carton is Associate Professor of Sustainability Science at Lund University, Sweden. He's the author of over 20 academic articles and book chapters on climate politics. His work has appeared in top journals such as Nature Climate Change, WIRES Climate Change and Antipode.Wim's Lund University page: https://www.lucsus.lu.se/wim-cartonLink to the book: https://www.versobooks.com/products/3317-the-long-heatFollow Wim on Bluesky: @wimcarton.bsky.socialPlease Like and Subscribe!Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.Follow Dan Miller on X/Twitter: @danmiller999Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.socialLeon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:https://www.researchgate.net/profile/Leon-SimonsFollow Leon on X/Twitter: @LeonSimons8 and Bluesky: @leonsimons.bsky.socialFollow Leon on Patreon: https://www.patreon.com/c/LeonSimons/homeFollow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.socialFollow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.socialYou can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.For more Climate Chat episodes, see our YouTube home page:https://www.youtube.com/@climatechatFor recent YouTube Live Climate Chat programs:https://www.youtube.com/@climatechat/streams1 hr 21 min
- Climate Politics When It's Too Late with Wim CartonIn this Climate Chat episode, we interview author and professor Wim Carton about his new book, co-authored with Andreas Malm, titled: "The Long Heat: Climate Politics When It's Too Late." The book focuses on climate adaption, negative emissions, and solar geoengineering and critiques them for being used as excuses to avoid rapid emissions reduction.Wim Carton is Associate Professor of Sustainability Science at Lund University, Sweden. He's the author of over 20 academic articles and book chapters on climate politics. His work has appeared in top journals such as Nature Climate Change, WIRES Climate Change and Antipode.Wim's Lund University page: https://www.lucsus.lu.se/wim-cartonLink to the book: https://www.versobooks.com/products/3317-the-long-heatFollow Wim on Bluesky: @wimcarton.bsky.socialPlease Like and Subscribe!Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.Follow Dan Miller on X/Twitter: @danmiller999Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.socialLeon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:https://www.researchgate.net/profile/Leon-SimonsFollow Leon on X/Twitter: @LeonSimons8 and Bluesky: @leonsimons.bsky.socialFollow Leon on Patreon: https://www.patreon.com/c/LeonSimons/homeFollow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.socialFollow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.socialYou can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.For more Climate Chat episodes, see our YouTube home page:https://www.youtube.com/@climatechatFor recent YouTube Live Climate Chat programs:https://www.youtube.com/@climatechat/streams1 hr 21 min
- Debunking the DoE Climate Denial Report with Andrew DesslerIn this Climate Chat episode, we interview climate scientist Andrew Dessler on his recent paper that debunks the "climate denial" report that was issued by the U.S. Department of Energy.Andrew Dessler is a climate scientist who studies both the science and politics of climate change. He is a Professor of Atmospheric Sciences and director of Texas A&M’s Texas Center for Climate Studies.His scientific research revolves around climate feedbacks, in particular how water vapor and clouds act to amplify warming from the carbon dioxide that humans emit. He is also interested in the intersection of climate change and human society, with the goal of helping us better cope with the impacts of climate change. This includes work quantifying climate extremes and how climate change can alter them, as well as analyzing how climate change will stress crucial energy, water, and other infrastructure and human systems.During the last year of the Clinton Administration, he served as a Senior Policy Analyst in the White House Office of Science and Technology Policy. Based on his research and policy experience, he has authored two books on climate change: The science and politics of global climate change: A guide to the debate (Cambridge University Press, 3rd ed. 2019, co-written with Edward Parson), and Introduction to modern climate change (Cambridge University Press, 3rd ed. 2021). This latter book won the 2014 American Meteorological Society Louis J. Battan Author's Award. Prior to his work on climate, his research focused on stratospheric photochemistry. He authored the book The chemistry and physics of stratospheric ozone (Academic Press, 2000) about his work on that subject.Link to DoE "A Critical Review of Impacts of Greenhouse Gas Emissions on the U.S. Climate"https://www.energy.gov/sites/default/files/2025-07/DOE_Critical_Review_of_Impacts_of_GHG_Emissions_on_the_US_Climate_July_2025.pdfAndrew Dessler & Robert Kopp's "Climate Experts’ Review of the DOE Climate Working Group Report"https://essopenarchive.org/users/260056/articles/1330312-climate-experts-review-of-the-doe-climate-working-group-reportAndrew's Texas A&M page: https://artsci.tamu.edu/atmos-science/contact/profiles/andrew-dessler.htmlAndrew's personal website (with info on his books): https://www.andrewdessler.comFollow Andrew on X/Twitter: @AndrewDesslerFollow Andrew on Bluesky: @andrewdessler.comPlease Like and Subscribe!Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.Follow Dan Miller on X/Twitter: @danmiller999Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.socialLeon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:https://www.researchgate.net/profile/Leon-SimonsFollow Leon on X/Twitter: @LeonSimons8 and Bluesky: @leonsimons.bsky.socialFollow Leon on Patreon: https://www.patreon.com/c/LeonSimons/homeFollow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.socialFollow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.socialYou can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.For more Climate Chat episodes, see our YouTube home page:https://www.youtube.com/@climatechatFor recent YouTube Live Climate Chat programs:https://www.youtube.com/@climatechat/streams1 hr 25 min
- Global Warming Acceleration, presentation by Leon Simons at the Global Heating Emergency ConferenceIn preparation for COP30, Leon gave this keynote presentation at the global online conference, "The Global Heating Emergency, Preventing 2°C by 2040: What’s the Plan?", which took place October 15-16.In this presentation Leon talks about the increased rate of global heating and how accelerated warming will lead to rapidly crossing risk levels that the world agreed to avoid in Paris 10 years ago.Other recordings of the will be available next week.For more, see:https://www.preventing2degrees.org/Please Like and Subscribe!!Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:https://www.researchgate.net/profile/Leon-SimonsFollow Leon on X/Twitter: @LeonSimons8 and Bluesky: @leonsimons.bsky.socialFollow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home10 min
- Northern/Southern Hemisphere Warming AsymmetryIn this Climate Chat episode, hosts Dan Miller and Leon Simons recent research on the asymmetry between warming in the Northern Hemisphere and South Hemisphere.PNAS paper: Emerging hemispheric asymmetry of Earth’s radiation:https://www.pnas.org/doi/10.1073/pnas.2511595122And in Science: Observed trend in Earth energy imbalance may provide a constraint for low climate sensitivity models:https://www.science.org/doi/10.1126/science.adt0647Links to Leon's upcoming presentations:https://www.preventing2degrees.orghttps://gezondetoekomst.orghttps://www.icari.euPlease Like and Subscribe!Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.Follow Dan Miller on X/Twitter: @danmiller999Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.socialLeon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:https://www.researchgate.net/profile/Leon-SimonsFollow Leon on X/Twitter: @LeonSimons8 and Bluesky: @leonsimons.bsky.socialFollow Leon on Patreon: https://www.patreon.com/c/LeonSimons/homeFollow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.socialFollow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.socialYou can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.For more Climate Chat episodes, see our YouTube home page:https://www.youtube.com/@climatechatFor recent YouTube Live Climate Chat programs:https://www.youtube.com/@climatechat/streams1 hr 32 min
- Is "Carbon Farming" a Scam? with author Michael GrunwaldIn this Climate Chat episode, We interview author Michael Grunwald about his new book, "We Are Eating the Earth":Humanity has cleared a land mass the size of Asia plus Europe to grow food, and our food system generates a third of our carbon emissions. By 2050, we’re going to need a lot more calories to fill nearly 10 billion bellies, but we can’t feed the world without frying it if we keep tearing down an acre of rainforest every six seconds. We are eating the earth, and the greatest challenge facing our species will be to slow our relentless expansion of farmland into nature. Even if we quit fossil fuels, we’ll keep hurtling towards climate chaos if we don’t solve our food and land problems.In this rollicking, shocking narrative, Grunwald shows how the world, after decades of ignoring the climate problem at the center of our plates, has pivoted to making it worse, embracing solutions that sound sustainable but could make it even harder to grow more food with less land. But he also tells the stories of the dynamic scientists and entrepreneurs pursuing real solutions, from a jungle-tough miracle crop called pongamia to genetically-edited cattle embryos, from Impossible Whoppers to a non-polluting pesticide that uses the technology behind the COVID vaccines to constipate beetles to death. It’s an often infuriating saga of lobbyists, politicians, and even the scientific establishment making terrible choices for humanity, but it’s also a hopeful account of the people figuring out what needs to be done—and trying to do it.Michael Grunwald, bestselling author of The Swamp and The New New Deal, builds his narrative around a brilliant, relentless, unforgettable food and land expert named Tim Searchinger. He chronicles Searchinger’s uphill battles against bad science and bad politics, both driven by the overwhelming influence of agricultural interests. And he illuminates a path that could save our planetary home for ourselves and future generations—through better policy, technology, and behavior, as well as a new land ethic recognizing that every acre matters.We Are Eating the Earth page on Simon & Schuster:https://www.simonandschuster.com/books/We-Are-Eating-the-Earth/Michael-Grunwald/9781982160074Please Like and Subscribe!Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.Follow Dan Miller on X/Twitter: @danmiller999Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.socialLeon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:https://www.researchgate.net/profile/Leon-SimonsFollow Leon on X/Twitter: @LeonSimons8 and Bluesky: @leonsimons.bsky.socialFollow Leon on Patreon: https://www.patreon.com/c/LeonSimons/homeFollow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.socialFollow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.socialYou can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.For more Climate Chat episodes, see our YouTube home page:https://www.youtube.com/@climatechatFor recent YouTube Live Climate Chat programs:https://www.youtube.com/@climatechat/streams1 hr 23 min
- +3ºC by 2050?!In this Climate Chat episode, Climate Chat hosts Dan Miller and Leon Simons discuss recent report from the German Meteorological Society and Physical Society that says that a warming of +3ºC (+5.4ºF) is possible by 2050. This is significantly more the IPCC and many other climate scientists say. As we will discuss, when it comes to existential threats, we must assume the worse and hope for the best.Report from the German Meteorological Society and Physical Society (in German, even though "English" is selected. They may update the website soon):https://www.dpg-physik.de/veroeffentlichungen/publikationen/stellungnahmen-der-dpg/klima-energie/klimaaufruf?set_language=enLeon Simons post on the report (in English):https://x.com/LeonSimons8/status/1971223899040842152Please Like and Subscribe!Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.Follow Dan Miller on X/Twitter: @danmiller999Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.socialLeon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:https://www.researchgate.net/profile/Leon-SimonsFollow Leon on X/Twitter: @LeonSimons8 and Bluesky: @leonsimons.bsky.socialFollow Leon on Patreon: https://www.patreon.com/c/LeonSimons/homeFollow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.socialFollow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.socialYou can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.For more Climate Chat episodes, see our YouTube home page:https://www.youtube.com/@climatechatFor recent YouTube Live Climate Chat programs:https://www.youtube.com/@climatechat/streams1 hr 27 min
- 'A Responsible Way to Cool the Planet'?!Dan Miller and Leon Simons talk about New York Times Opinion article on Sunlight Reflection Methods (SRM) by Zeke Hausfath and David Keith.Humanity will be forced to make a balanced assessment of the risks of (intentionally) cooling vs not cooling the planet.More than what we do now.See yesterday's Climate Chat, where we talk about the aerosol termination shock of the sulphur air pollution that has already been mitigated over the past two decades.Notably from cleaning up shipping and coal-fired power plants:https://www.youtube.com/live/BNZ_biCaohE11 min
- What the Hell is Going On in the North Pacific?In this Climate Chat episode, Climate Chat hosts Dan Miller and Leon Simons discuss recent temperature readings from the North Pacific Ocean and other areas.Please Like and Subscribe!Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.Follow Dan Miller on X/Twitter: @danmiller999Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.socialLeon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:https://www.researchgate.net/profile/Leon-SimonsFollow Leon on X/Twitter: @LeonSimons8 and Bluesky: @leonsimons.bsky.socialFollow Leon on Patreon: https://www.patreon.com/c/LeonSimons/homeFollow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.socialFollow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.socialYou can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.For more Climate Chat episodes, see our YouTube home page:https://www.youtube.com/@climatechatFor recent YouTube Live Climate Chat programs:https://www.youtube.com/@climatechat/streams1 hr 48 min
About Climate Chat
From the publisher's feed
Climate Chat is a channel where we discuss all things climate with scientists, technologists, authors, advocates, communicators and others helping us understand and fight climate change.