Episodes

  • What Happens to Our Food Supply When We Dim the Sun? with Brendan Clark
    Jul 10 2026
    In this Climate Chat episode, host Dan Miller interviews Cornell atmospheric climate scientist Brendan Clark about his research on how Sunlight Reflection Methods (SRM, a.k.a., solar geoengineering) will impact vegetation growth and agriculture. We will also discuss Brendan's recent paper on how global warming induced changes to vapor pressure deficit (VPD) is slowing the growth of trees and reducing an important carbon sink. Dr. Brendan Clark is an atmospheric scientist and Postdoctoral Research Associate at Cornell University who specializes in modeling climate intervention scenarios, specifically Stratospheric Aerosol Intervention (SAI). His research focuses on evaluating the regional trade-offs and agricultural impacts of solar geoengineering, simulating how altered temperature and sunlight patterns would affect global crop production, food security, and terrestrial ecosystems. A former graduate researcher at Rutgers University, he has authored prominent papers on these climate engineering variables, including a lead-author study in Nature Food examining how optimal climate intervention strategies vary by nation. Brendan on LinkedIn: linkedin.com/in/brendan-clark-800 Brendan on Google Scholar (links to research papers): https://scholar.google.com/citations?user=40c5-l0AAAAJ&hl=en Please Like and Subscribe! Listen to Climate Chat on Apple Podcasts: https://podcasts.apple.com/us/podcast/climate-chat/id1893162516 Listen to Climate Chat on Spotify: https://open.spotify.com/show/1m0OSLWRPPcyOddErvxJ1e 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: @danmiller999 Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social 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-Simons Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬ Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social You 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/@climatechat For recent YouTube Live Climate Chat programs: https://www.youtube.com/@climatechat/streams
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    1 hr and 2 mins
  • Ten Major Misconceptions About Climate Change
    Jul 5 2026
    In this Climate Chat episode, host Dan Miller discusses 10 major misconceptions about climate change held by people involved in climate action. This is not about climate denial myths, but rather about "conventional wisdom" that turns out to be wrong. Please Like and Subscribe! Listen to Climate Chat on Apple Podcasts: https://podcasts.apple.com/us/podcast/climate-chat/id1893162516 Listen to Climate Chat on Spotify: https://open.spotify.com/show/1m0OSLWRPPcyOddErvxJ1e 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: @danmiller999 Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social 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-Simons Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬ Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social You 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/@climatechat For recent YouTube Live Climate Chat programs: https://www.youtube.com/@climatechat/streams
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    Less than 1 minute
  • Methane Eradication: Matthew Johnson's Radical Chemistry
    Jun 28 2026
    In this Climate Chat episode, host Dan Miller interviews atmospheric scientist Dr. Matthew S. Johnson on his critical work to find ways to eradicate methane from point sources such as a cow barn, as well as from the atmosphere. Matthew S. Johnson, PhD is a Professor of Chemistry at the University of Copenhagen. He has a Bachelor in Chemistry from Macalester College in St. Paul Minnesota and a PhD in Physical Chemistry from the California Institute of Technology for work on laser spectroscopy of solvated ions in a molecular beam. He received a Fulbright Fellowship to work at the MAX-Lab Synchrotron in Lund Sweden on spectroscopy related to stratospheric ozone depletion. He is coauthor of 134 peer-reviewed publications in atmospheric chemistry, kinetics and spectroscopy, 12 patents and the textbook Chemistry and the Environment published by Cambridge University Press. He has founded and/or worked with multiple startup companies including Infuser, Airlabs, Airscape, Rensair, Sterisafe, Devlabs and Ambient Carbon. Matthew's University of Copenhagen page: https://researchprofiles.ku.dk/en/persons/matthew-stanley-johnson/ Matthew's LinkedIn page: https://www.linkedin.com/in/matthewjohnson-atmoschem/ Please Like and Subscribe! Listen to Climate Chat on Apple Podcasts: https://podcasts.apple.com/us/podcast/climate-chat/id1893162516 Listen to Climate Chat on Spotify: https://open.spotify.com/show/1m0OSLWRPPcyOddErvxJ1e 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: @danmiller999 Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social 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-Simons Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬ Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social You 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/@climatechat For recent YouTube Live Climate Chat programs: https://www.youtube.com/@climatechat/streams
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    1 hr and 12 mins
  • I Met These Climate Start-ups—Here’s What They’re Building
    Jun 20 2026
    In this Climate Chat episode, host Dan Miller reviews a number of climate tech start-up companies that he met at the recent Venture Summit West conference in Mountain View, California. Links to the start-up companies mentioned in the episode: Green Gravity: https://greengravity.com RISE Robotics: https://riserobotics.com Element Zero: https://elementzero.green/ ADAR Plus: https://www.adartech.com/ Volexion: https://www.volexion-inc.com/ Aeromutable: https://www.aeromutable.com Renu Robotics: https://renurobotics.com NEG (Non-Ergodic Generator): https://www.institut-kurz.com/NEG/ Please Like and Subscribe! Listen to Climate Chat on Apple Podcasts: https://podcasts.apple.com/us/podcast/climate-chat/id1893162516 Listen to Climate Chat on Spotify: https://open.spotify.com/show/1m0OSLWRPPcyOddErvxJ1e 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: @danmiller999 Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social 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-Simons Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬ Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social You 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/@climatechat For recent YouTube Live Climate Chat programs: https://www.youtube.com/@climatechat/streams
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    Less than 1 minute
  • Students Fighting To Force Polluters to Pay: Carbon Fee & Dividend w/ Katharine Gage
    Jun 12 2026
    In this Climate Chat episode, host Dan Miller Katharine Gage, a climate activist working to get students to rally around the Carbon Fee and Dividend (CFD) carbon pricing policy. Katharine Gage graduated from Bowdoin College with a major in Earth and Oceanographic Science and a minor in Psychology. Her academic work included research in oceanography and biogeochemistry. She has been leading climate advocacy efforts since 8th grade, and now co-leads the Carbon Fee and Dividend Movement and recently gave a TEDx Talk about this effort. Her interest in policymaking also led to two internships in Congressional offices. Next year, Katharine will be pursuing a Masters in Environmental Management. CFD Movement website: cfdmovement.org Katharine's TEDx talk: https://youtu.be/wz_boeqzupY Email Congress website: bit.ly/writecongresshere Katharine's LinkedIn: www.linkedin.com/in/katharine-gage-5297b7266 CFD email address to get in touch: team@cfdmovement.org Dan's CFD TEDx Talk: https://youtu.be/0k2-SzlDGko Dan & James Hansen's white paper on CFD: https://csas.earth.columbia.edu/sites/default/files/content/Fee-and-Dividend-Miller-Hansen-20191110-1.pdf Please Like and Subscribe! Listen to Climate Chat on Apple Podcasts: https://podcasts.apple.com/us/podcast/climate-chat/id1893162516 Listen to Climate Chat on Spotify: https://open.spotify.com/show/1m0OSLWRPPcyOddErvxJ1e 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: @danmiller999 Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social 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-Simons Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬ Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social You 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/@climatechat For recent YouTube Live Climate Chat programs: https://www.youtube.com/@climatechat/streams
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    1 hr and 1 min
  • Ask Us Anything #3 with Climate Chat Hosts Dan Miller & Leon Simons
    Jun 6 2026
    In this Climate Chat episode, hosts Dan Miller and Leon Simons discuss the latest climate news and any audience questions. You can post questions in the live YouTube or LinkedIn chat or post them in the program announcement threads on Twitter/X or Bluesky. Please Like and Subscribe! Listen to Climate Chat on Apple Podcasts: https://podcasts.apple.com/us/podcast/climate-chat/id1893162516 Listen to Climate Chat on Spotify: https://open.spotify.com/show/1m0OSLWRPPcyOddErvxJ1e 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: @danmiller999 Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social 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-Simons Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬ Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social You 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/@climatechat For recent YouTube Live Climate Chat programs: https://www.youtube.com/@climatechat/streams
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    Less than 1 minute
  • Can Technology Fix the Climate? with Adam Dorr
    May 28 2026
    In this Climate Chat episode, host Dan Miller interviews author and RethinkX's Director of Research, Adam Dorr, about his two books, Brighter, and The Degrowth Delusion. RethinkX is a think tank that focuses on disruptive technologies including renewable energy and precision fermentation. Adam argues renewable energy will dominate future energy supply and that "degrowth" will not provide us with the resources to fight climate change. Adam Dorr is an environmental social scientist, technology theorist, and author. As Director of Research at RethinkX, he leads analysis and forecasting of technology-driven disruptions in energy, transportation, food, and labor. His work argues that the converging disruptions of the 21st century will not only solve our most pressing environmental challenges but also open the door to unprecedented human flourishing. Adam's work makes a data-driven case for optimism about our shared future. Follow Adam on X/Twitter: @adam_dorr Adam's personal website: https://www.adamdorr.com RethinkX website: https://www.rethinkx.com Please Like and Subscribe! Listen to Climate Chat on Apple Podcasts: https://podcasts.apple.com/us/podcast/climate-chat/id1893162516 Listen to Climate Chat on Spotify: https://open.spotify.com/show/1m0OSLWRPPcyOddErvxJ1e 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: @danmiller999 Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social 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-Simons Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬ Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social You 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/@climatechat For recent YouTube Live Climate Chat programs: https://www.youtube.com/@climatechat/streams
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    1 hr and 50 mins
  • Throwing Shade at Global Warming: Risks & Reality of Planetary Sunshades with Ross Centers
    May 23 2026
    In this Climate Chat episode, host Dan Miller interviews Planetary Sunshade Institute's Board Member and former Executive Director, Ross Centers, on the science, risks, and reality of using giant space-based sunshades located between the Sun and the Earth to reduce global warming. Ross Centers is an American planetary geologist, space entrepreneur, and climate advocate. He is the Co-Founder and CEO of Ethos Space, a lunar infrastructure startup. Based in Los Angeles, California, Centers has positioned himself at the intersection of commercial space resource utilization (SRU) and space-based climate mitigation technologies. By leveraging a deep technical background in space architecture and resources, his career focuses on establishing the physical infrastructure required to sustain an off-world economy while simultaneously building tools to stabilize Earth's climate. Centers developed his expertise in aerospace and geology at the Colorado School of Mines, where he earned a Master’s degree in Space Resources. Planetary Sunshade Institute website: https://planetarysunshade.org Ethos Space website: https://ethos-space.com Ross on LinkedIn: https://www.linkedin.com/in/centers/ Please Like and Subscribe! Listen to Climate Chat on Apple Podcasts: https://podcasts.apple.com/us/podcast/climate-chat/id1893162516 Listen to Climate Chat on Spotify: https://open.spotify.com/show/1m0OSLWRPPcyOddErvxJ1e 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: @danmiller999 Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social 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-Simons Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬ Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social You 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/@climatechat For recent YouTube Live Climate Chat programs: https://www.youtube.com/@climatechat/streams
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    1 hr and 9 mins