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.
In this Climate Chat episode, hosts Dan Miller and Leon Simons discuss the latest climate updates and answer listener questions.
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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
11 Oct 2026
Cool, Reduce, Remove: The Emergency Blueprint to Restore the Climate with Dennis Garrity
In this Climate Chat episode, we interview the Chair of the Heathy Planet Action Coalition (HPAC) on the organizations plans and actions to restore the climate through "Cooling" (Sunlight Reflection Methods or SRM), "Reduce" (emission reduction) and "Remove" (Carbon Dioxide Removal or CDR).
Dr. Dennis Garrity is a systems agronomist and research leader whose career has focused on improving small-scale farming systems in the tropics. He has been serving as Drylands Ambassador for the UN Convention to Combat Desertification, emphasizing the role of agroforestry, evergreen agriculture and landcare for sustainable land management. From 2001 to 2011, he served as Director General of the World Agroforestry Centre. He is currently Chair of the Board of the Global EverGreening Alliance, a partnership of nearly all of the major development and conservation organizations around the world, working together to restore hundreds of millions of hectares of degraded land and enhance the livelihoods of millions of the least-favored smallholder farm families in the tropics. He also chaired Landcare International from 2005 to 2020, a worldwide effort to support grassroots community-based natural resource management, and currently is a member of the Board of Global Landcare. Dennis is HPAC Steering Circle Coordinator.
Link to HPAC: https://healthyplanetaction.org
Dennis' email: D (dot) garrity (at) landscapealliance (dot) org
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
30 Sept 2026
Debunking the Myths: Why Carbon Removal Can Scale with Klaus Lackner
In this Climate Chat episode, we interview climate scientist Klaus Lackner on the myths surrounding Carbon Dioxide Removal (CDR, a.k.a, carbon capture) and how CDR can scale massively if the proper policies are put in place.
Dr. Klaus Lackner is a former professor in the School of Sustainable Engineering and the Built Environment and the founding director of the Center for Negative Carbon Emissions at Arizona State University. A pioneer in carbon management, Lackner was the first scientist to propose direct air capture—capturing carbon dioxide directly from the ambient atmosphere—as a viable tool to combat climate change. Trained in theoretical physics at the University of Heidelberg, his career spans positions at Los Alamos National Laboratory and Columbia University, where he directed the Lenfest Center for Sustainable Energy. Lackner's foundational research on mineral sequestration and moisture-swing sorbents led to the development of passive carbon capture technologies, such as "Mechanical Trees," which passively absorb CO2.
Listen to our 2021 interview with Klaus (audio-only):
The Godfather of Carbon Capture: Klaus Lackner Interview: https://youtu.be/IRO9q8MuQms
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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