Climate Chat

In this Climate Chat episode, Climate Chat host Dan Miller answers climate-related questions posted on YouTube, Twitter/X, and Bluesky. If you would like to view an interview and missed Thursday's discussion with former US Energy Secretary Steven Chu, follow this link: https://youtube.com/live/16hxH2dTB7o Please Like and Subscribe! Dan Miller has been giving talks around the world on the need for...

In this Climate Chat episode, we interview former U.S. Secretary of Energy and Nobel Laureate Steven Chu about the state and future of climate change, why political leaders have not addressed climate change seriously, and what can be done to increase action. Steven Chu is the William R. Kenan, Jr. Professor of Physics, of Molecular and Cellular Physiology, and of Energy Science and Engineering at...

In this Climate Chat episode, Leon Simons interviews University of Exeter climate scientist Peter Cox about the acceleration of global warming, climate tipping points, and other climate-related subjects. Professor Peter Cox is Professor of Climate System Dynamics in Mathematics and the Director of the Global Systems Institute at the University of Exeter. He has previously worked at the Met Office-...

In this Climate Chat episode, we interview climate scientist Ben Santer about his lifelong work studying the human fingerprint on climate change. Ben Santer was a climate researcher at Lawrence Livermore National Laboratory and former researcher at the University of East Anglia's Climatic Research Unit. He retired from the Lawrence Livermore National Laboratory in 2021 and is now a Distinguished S...

In this Climate Chat episode, we interview University of New South Wales climate scientist Matthew England on his recent Nature paper "Drivers of the extreme North Atlantic marine heatwave during 2023." We will also discuss Matthew's research on the Atlantic Meridional Overturning Circulation (AMOC) and changes in the Southern Ocean circulation and its impact on Antarctica. Matthew England is Aust...

In this Climate Chat episode, we interview The Lightsmith Group co-founder and Managing Director Sanjay Wagle about his firm's focus on investing in climate adaptation and resilience opportunities. Sanjay Wagle is co-founder and Managing Director of The Lightsmith Group, a private equity firm investing in growth-stage technology companies that address critical societal needs, with a current focus...

In this Climate Chat episode, Climate Chat hosts Dan Miller and Leon Simons discuss the unintended consequences of reducing fossil fuel emissions and the problems of pursuing a "emissions reduction only" approach to addressing climate change. Leon Simons' 2023 LinkedIn post: "Unintended consequences of cleaning up our mess": https://www.linkedin.com/pulse/unintended-consequences-cleaning-up-our-me...

In this Climate Chat episode, We interview Andrew Hultgren about his recent paper in the journal Nature, "Impacts of climate change on global agriculture accounting for adaptation." The paper concludes that there will be significant drops in agriculture productivity under global warming even with adaption measures. Surprisingly, negative impacts are larger in developed countries with advanced agri...

In this Climate Chat episode, We interview Ben Carey, the co-founder of the Utopia Bureau, a climate communications lab, prototyping innovative ways to trigger climate action urgently and at scale. Its approach is to help tip social norms across multiple fronts. Its founders are Ben Carey and Henrik Delehag, authors and ex-advertising creative directors. They draw on a wide network of strategic, c...

In this Climate Chat episode, We interview Shantanu Agarwal, the CEO of Mati Carbon which was the Grand Prize winner of the Carbon Removal XPrize. Mati spreads crushed basalt rocks on farmer fields in the global south which improves soil quality and the crushed rock absorbs CO2 which earns carbon removal credits. Shanatanu Agarwal is an experienced climate tech serial entrepreneur with more than 2...

In this Climate Chat episode, Climate Chat hosts Dan Miller and Leon Simons discuss the upcoming report: "Indicators of Global Climate Change 2024: annual update of key indicators of the state of the climate system and human influence" which is in pre-print for the journal Earth System Science Data (ESSD). We will also discuss climate change indicators that are not included in the report. Link to...

In this Climate Chat episode, we interview University of Michigan Professor Kaitlin Raimi about her research on public perception of climate change and climate solutions such as carbon capture and sunlight reflection methods (SRM). Kaitlin Raimi is an associate professor of public policy at the University of Michigan Ford School. As a social/environmental psychologist, her interests center on how...

In this Climate Chat episode, we answer viewer questions. Please post your questions ahead of the live program on X/Twitter or Bluesky. During the livestream, you can post questions via the YouTube comments (please preface your question with "Question:"). 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-f...

In this Climate Chat episode, we interview returning guest René van Westen on his latest Atlantic Meridional Overturning Circulation (AMOC) research. Dr. Westen is a postdoctoral researcher at Utrecht University in the Netherlands. René is the author of a number of recent scientific papers on AMOC including the following: Substantial Risk of 21st Century AMOC Tipping even under Moderate Climate Ch...

In this Climate Chat episode, hosts Dan Miller & Leon Simons discuss warming trends and what they say about when the Earth will cross the 2ºC warming threshold. We will also discuss the latest communications from climate scientist James Hansen on cloud feedbacks and what that means for near-term global warming. Link to James Hansen's communication: "Large Cloud Feedback Confirms High Climate Sensi...

In this Climate Chat episode, Dan Miller presents the second half of a lecture he gave recently at the Middlebury Institute of International Studies in Monterey. This talk is on why climate policies fail and highlights the mistakes made when developing climate policies and ends with a set of policies that would seriously address the climate crisis. Please Like and Subscribe! Link to first half of...

In this Climate Chat episode, Leon Simons reports on the European Geosciences Union (EGU) 2025 General Assembly meeting that ended Friday. Please Like and Subscribe! Link to EGU 2025 website: https://www.egu25.eu 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 this Climate Chat episode, Cornell climate scientist -- and returning guest -- Douglas MacMartin discusses a research paper he co-authored that says Sunlight Reflection Methods (a.k.a, solar radiation management - SRM) can stop the weakening of the Atlantic Meridional Overturning Circulation (AMOC), which is the ocean "conveyor belt" that transports warm water from the tropics to northern Europ...

In this Climate Chat episode, Dan Miller presents an update on the latest climate science, with an emphasis on the recent research from climate scientist James Hansen as well as NASA scientist George Tselioudis. This presentation is based on a lecture that Dan gave recently at the Middlebury Institute of International Studies at Monterey. Note: This abridged version does not include Q&A at the end...

In this Climate Chat episode, we talk with Dana Fisher, author of "Saving Ourselves: From Climate Shocks to Climate Action," about what it will take to get the public to demand climate action and get policymakers to listen to them. Dana R. Fisher is the Director of the Center for Environment, Community, & Equity and Professor in the School of International Service at American University. She curre...

In this Climate Chat episode, Leon Simons and Dan Miller will discuss how the IPCC treats CO2 and aerosol emissions differently and how that leads to an underestimation of climate impacts. Link to posts on this subject: https://bsky.app/profile/leonsimons.bsky.social/post/3lljyjnclts2a https://x.com/ryankatzrosene/status/1905326300363194478 Many other Climate Chat programs on accelerated warming,...

In this Climate Chat episode, we interview Climate Defiance founder and executive director Michael Greenberg on the organization's goals, tactics, and successes, and how their strategy may change given the current administration's attacks on climate action and science. Michael Greenberg is the founder and executive director of Climate Defiance. His work focuses on resisting new fossil fuel infrast...

In this Climate Chat episode, we interview Dr. Vincent Gauci on how reducing air pollution results in increased atmospheric methane concentrations. Vincent Gauci is professor of Geography and Environmental Sciences and a Birmingham Professorial Fellow at the University of Birmingham in the UK. Professor Gauci investigates how the biosphere interacts with the atmosphere and he explores questions re...

In this Climate Chat episode, we interview Dr. Peter Gleick on the impact that climate change is having, and will have, on water, including water availability, floods, droughts, extreme rainfall, water-driven conflict, and "peak water." Dr. Peter Gleick is a leading scientist, innovator, and communicator on water and climate issues. He co-founded the Pacific Institute in Oakland,California in 1987...

In this Climate Chat episode, we discuss the issue of ecological footprint overshoot and climate change with Professor William E. Rees. William Rees is a bio-ecologist, ecological economist, former Director and Professor Emeritus of the University of British Columbia’s School of Community and Regional Planning. His early research focused on environmental assessment but gradually extended to the bi...