Climate Chat

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...

In this Climate Chat episode, I will interview returning guest David Fenton, a Climate Communications Expert & Activist, about the failure of the climate community to engage the public and how we can get the public to demand action on climate change. David founded the largest Public Relations firm focused on social causes, Fenton Communications. After retiring from the firm, David is dedicating hi...

In this Climate Chat episode, Leon Simons and I will discuss the new communication by James Hansen titled "The Acid Test: Global Temperature in 2025" In his message, Hansen discusses what current temperatures say about his theory on why the global temperature has accelerated in recent years. Leon and I will also make an announcement about upcoming enhancements to the Climate Chat channel. Link to...

In this Climate Chat episode, we speak with Citizens' Climate Lobby's (CCL) Research Coordinator, Dana Nuccitelli, about what CCL does and how it is going to navigate the political environment that is moving away from climate action and science in general. Citizens’ Climate Lobby is a nonprofit, nonpartisan, grassroots advocacy climate change organization focused on national policies to address th...

In this Climate Chat episode, Leon Simons and I will discuss the new paper by James Hansen, et al, titled "Global Warming Has Accelerated: Are the United Nations and the Public Well-Informed?" In the paper, Hansen discusses how the recent IMO regulations on ship emissions were a significant contributor to the recent acceleration in global warming. The paper more broadly shows that aerosols are a s...

In this Climate Chat episode, we will discuss climate denial (and denial in general) with Tad DeLay, author of "Future of Denial: The Ideologies of Climate Change." Tad will discuss how it is not just conservatives that are in denial of climate change. Tad DeLay is a philosopher, religion scholar, and interdisciplinary critical theorist. He teaches in Baltimore. He is the author of four books. The...

In this Climate Chat episode, we will discuss emissions reduction with Jonathan Foley, Executive Director of Project Drawdown. With a new administration scaling back clean energy, how can the US and the rest of the world make significant greenhouse gas emission reductions? Also, can emission reductions alone maintain a safe climate for our children? Dr. Jonathan Foley is a renowned climate scienti...

In this Climate Chat episode, we will discuss the recently published climate risk report from the University of Exeter's Institute and Faculty of Actuaries. The report is titled: "Planetary Solvency – finding our balance with nature: Global risk management for human prosperity." The report lays out how most previous analyses of have seriously underestimated climate risk and, therefore, policymaker...

In this Climate Chat episode, returning guest, climate scientist David Keith joins us to discuss new research on the projected death tolls from implementing vs. *not* implementing solar geoengineering (a.k.a., Solar Radiation Management or Sunlight Reflection Methods - SRM). David was co-author of a new paper in the Proceedings of the National Academy of Sciences titled "Impact of solar geoenginee...

In this Climate Chat episode, we speak with NASA climate scientist George Tselioudis about his recent research paper on cloud feedbacks in the climate system titled "Oceanic cloud trends during the satellite era and their radiative signatures." Dr. Tselioudis is a researcher at the NASA Goddard Institute for Space Studies where he heads a research team that analyzes observations and model simulati...

In this Climate Chat episode, returning guest climate scientist Leon Simons will discuss the 2023/2024 accelerated global warming and what the data suggests will lead us to in the future. Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on last year's "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Le...

In this Climate Chat discussion, we will review the major climate change issues, research findings, and events of 2024. ---------------- Follow Dan Miller on X/Twitter: @danmiller999 Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also leave a...