Climate Debrief

Dr. Frits Byron Soepyan joins Angela Wheeler and examines the long-term history of atmospheric CO₂ and Earth’s temperature. He explains why modern CO₂ levels are low compared with much of geological history and discusses CO₂’s role in plant growth and global greening. He also explores historical temperature records, including the Little Ice Age, and argues that temperature changes cannot be explained by CO₂ alone.

Dr. Frits Byron Soepyan joins Angela Wheeler and examines the long-term history of atmospheric CO₂ and Earth’s temperature. He explains why modern CO₂ levels are low compared with much of geological history and discusses CO₂’s role in plant growth and global greening. He also explores historical temperature records, including the Little Ice Age, and argues that temperature changes cannot be explained by CO₂ alone.

Dr. James Enstrom is an epidemiologist, physicist, and longtime researcher focused on scientific integrity. In this episode of Climate Debrief, he discusses his research into air pollution, PM2.5, and public health. He explains why transparency, reproducibility, and access to data are essential to good science. Dr. Enstrom also examines the evidence behind claims linking air pollution to mortality and the implications for public policy.

Are today's catastrophic wildfires really driven by climate change, or are decades of forest management policies to blame? In this episode of Climate Debrief, Dr. Bob Zybach outlines practical steps he believes could reduce wildfire risk and restore healthier forests. Join us for an in-depth conversation about wildfire history, forest management, and the policies shaping America's landscapes.

Are today's catastrophic wildfires really driven by climate change, or are decades of forest management policies to blame? In this episode of Climate Debrief, Dr. Bob Zybach joins Angela Wheeler and shares historical evidence and firsthand experience to explain how active forest management once kept forests healthier and more resilient. Dr. Zybach also outlines practical steps he believes could reduce wildfire risk and restore healthier forests. Join us for an in-depth conversation about wildfire history, forest management, and the policies shaping America's landscapes.

Is the science behind today's climate policies as solid as it seems? In Part 2 of this Climate Debrief interview, Dr. John Dale Dunn joins Angela Wheeler to examine the origins and misapplication of the Linear No-Threshold (LNT) Theory in environmental regulation. Dr. Dunn, a board-certified emergency physician with over 50 years of experience and an inactive attorney with decades in toxicology, epidemiology, and radiation biophysics, challenges the foundational assumptions driving modern climate and environmental policies. He discusses dose-response principles, the problems with population studies, Bradford Hill criteria for causation, and why real toxicology should guide policy instead of precautionary overreach. Topics covered: • Origins of Linear No-Threshold Theory and its impact on regulation • Toxicology vs. epidemiology in policymaking • Human vs. natural CO2 sources and historical climate context • Low-level radiation, thresholds, and potential benefits • Why "gross zero" ambitions mirror flawed LNT thinking 👉 Watch Part 1 here: https://youtu.be/3OTZLlYkh2I 📚 CO2 Coalition: https://co2coalition.org

Threshold Theory and argues that it has been misapplied to environmental regulation. He discusses toxicology, epidemiology, and the scientific principles he believes should guide public policy. John Dale Dunn has been an emergency physician for more than fifty years and an attorney (inactive) for forty years, admitted to the bars of Nebraska, Louisiana and Texas by examination. For more than thirty years, Dunn has been a student of environmental science, environmental laws, toxicology, epidemiology, and radiation biophysics. 📚 CO2 Coalition: https://co2coalition.org

In the final part of this insightful conversation, Angela Wheeler continues her discussion with Dr. Sharon Camp, Senior Education Advisor for the CO2 Coalition and creator of the CO2 Learning Center lesson plans. Dr. Camp (Ph.D. Analytical Chemistry) dives deeper into the importance of rigorous scientific evidence in the courtroom, the limitations of climate models, challenges to scientific consensus, and practical ways to strengthen science education and critical thinking for the next generation. This series explores how science should inform policy — not politics — and why judges, educators, and citizens must prioritize empirical data over narratives. 👉 Watch Part 1: https://www.youtube.com/watch?v=sBvrl7y1dTM 👉 Watch Part 2: https://www.youtube.com/watch?v=pC8PxdKwKk8 --- 🧪 Learn more about the CO2 Learning Center: https://co2learningcenter.com 📚 CO2 Coalition: https://co2coalition.org #ClimateScience #ScientificMethod #CO2Coalition #Education #CriticalThinking

Angela Wheeler continues her discussion with Dr. Sharon Camp, Senior Education Advisor for the CO₂ Coalition, about her article "Muddling the Judiciary’s Understanding of Science". Dr. Camp discusses the scientific method, the role of models and consensus in climate science, and why she believes judges should rely on rigorous evidence when evaluating scientific claims. The conversation also explores science education, critical thinking, and the growing influence of climate policy in the courtroom.

In this episode of Climate Debrief, Angela Wheeler speaks with Dr. Sharon Camp, Senior Education Advisor for the CO₂ Coalition, about her article "Muddling the Judiciary’s Understanding of Science". Dr. Camp discusses the scientific method, the role of models and consensus in climate science, and why she believes judges should rely on rigorous evidence when evaluating scientific claims. The conversation also explores science education, critical thinking, and the growing influence of climate policy in the courtroom.

In the second part of Angela Wheeler's interview with geologist Koen Vogel, Ph.D., they discuss what may have caused the massive ice sheets of the last Ice Age to melt. Drawing on peer-reviewed research, Dr. Vogel examines the evidence behind CO₂, Milankovitch cycles, and other proposed explanations, highlighting why many popular theories struggle to explain the timing and scale of the deglaciation. The discussion explores abrupt climate shifts, ancient ice sheets, and the scientific challenges of reconstructing Earth's climatic past.

In this episode of Climate Debrief, host Angela Wheeler speaks with geologist Koen Vogel, Ph.D., about one of climate science’s biggest unanswered questions: What caused the massive ice sheets of the last Ice Age to melt? Drawing on peer-reviewed research, Dr. Vogel examines the evidence behind CO₂, Milankovitch cycles, and other proposed explanations, highlighting why many popular theories struggle to explain the timing and scale of the deglaciation. The discussion explores abrupt climate shifts, ancient ice sheets, and the scientific challenges of reconstructing Earth's climatic past.

In this episode of Climate Debrief, Angela Wheeler speaks with Matthew Wielicki, Ph.D., about academic freedom, climate science, and the importance of open debate. Dr. Wielicki shares how his family's experience fleeing communist Poland shaped his views on intellectual freedom. He discusses his departure from academia, concerns about climate anxiety among students, and what he sees as a growing disconnect between scientific findings and public narratives. The conversation also examines competing interpretations of climate data, the role of media and institutions in shaping public perception, and the value of questioning assumptions in science. Wielicki concludes by encouraging young people to focus on practical environmental stewardship, think critically, and remain optimistic about the future. Follow us on social media! X: x.com/CO2Coalition YouTube: @co2coalition Website: co2coalition.org/ Facebook: facebook.com/TheCO2Coalition/ Instagram: theco2coalition

Wallace Manheimer, PhD, provides a detailed critique of climate-related statements issued by major scientific societies in this discussion with Angela Wheeler. The conversation examines global energy trends, historical climate data, and differing international perspectives on fossil fuel use. Dr. Manheimer also addresses the scientific role of carbon dioxide and proposes changes to improve clarity and accuracy in institutional climate communications. Follow us on social media! X: x.com/CO2Coalition Youtube: /@co2coalition Website: co2coalition.org/ Facebook: facebook.com/TheCO2Coalition/ Instagram: / theco2coalition

Wallace Manheimer provides a detailed critique of climate-related statements issued by major scientific societies in this discussion with Angela Wheeler. The conversation examines global energy trends, historical climate data, and differing international perspectives on fossil fuel use. Manheimer also addresses the scientific role of carbon dioxide and proposes changes to improve clarity and accuracy in institutional climate communications.

In this episode of Climate Debrief, Angela Wheeler sits down with ecologist Jim Steele. They explore the concept of “zonerism”—the use of selective facts to draw misleading conclusions. Steele draws on decades of field research in the Sierra Nevada. He explains how local environmental changes matter. He also highlights natural climate cycles like El Niño and La Niña. He argues these often play a larger role than commonly portrayed. They discuss wet meadow restoration, bird population trends, wildfire patterns, and ocean dynamics. Steele challenges prevailing narratives. He emphasizes the importance of critical thinking in climate science. X: x.com/CO2Coalition Website: co2coalition.org/ Facebook: facebook.com/TheCO2Coalition/ Instagram: / theco2coalition

In this episode of Climate Debrief, Angela Wheeler sits down with ecologist Jim Steele. They explore the concept of “zonerism”—the use of selective facts to draw misleading conclusions. Steele draws on decades of field research in the Sierra Nevada. He explains how local environmental changes matter. He also highlights natural climate cycles like El Niño and La Niña. He argues these often play a larger role than commonly portrayed. They discuss wet meadow restoration, bird population trends, wildfire patterns, and ocean dynamics. Steele challenges prevailing narratives. He emphasizes the importance of critical thinking in climate science. X: x.com/CO2Coalition Website: co2coalition.org/ Facebook: facebook.com/TheCO2Coalition/ Instagram: / theco2coalition

Dr. Ganapathy Shanmugam joins Angela Wheeler on Climate Debrief and reflects on his journey from India to a long career in the energy industry. He explains the issues with closed peer-review, struggles with publishing his work, explaining the open-peer review system, and the failures of "green" energy projects. Drawing on decades of research, he examines fossil fuels, CO₂, and climate science. He also shares his perspective on energy development, environmental challenges, and ongoing scientific debates. https://co2coalition.org/publications... Follow us on social media! X: x.com/CO2Coalition Youtube: / @co2coalition Website: co2coalition.org/ Facebook: facebook.com/TheCO2Coalition/ Instagram: / theco2coalition

Dr. Ganapathy Shanmugam joins Angela Wheeler on Climate Debrief and reflects on his journey from India to a long career in the energy industry. He defends Alex Epstiein's book Fossil Futures, Dr. William Happer's start as a scientist, the extent that crude oil has on our lives, what life would be like without oil-based products, the pressures of ESG on third-world countries, the effects of CO2 up to 10,000 parts per million, and the inaccuracies of modern climate models. Drawing on decades of research, he examines fossil fuels, CO₂, and climate science. He also shares his perspective on energy development, environmental challenges, and ongoing scientific debates. Follow us on social media! X: x.com/CO2Coalition Youtube: / @co2coalition Website: co2coalition.org/ Facebook: facebook.com/TheCO2Coalition/ Instagram: / theco2coalition

Dr. Ganapathy Shanmugam joins Angela Wheeler on Climate Debrief and reflects on his journey from India to a long career in the energy industry. He discusses his work with ExxonMobil and his experience in petroleum geology. Drawing on decades of research, he examines fossil fuels, CO₂, and climate science. He also shares his perspective on energy development, environmental challenges, and ongoing scientific debates. https://co2coalition.org/publications... Follow us on social media! X: x.com/CO2Coalition Youtube: / @co2coalition Website: co2coalition.org/ Facebook: facebook.com/TheCO2Coalition/ Instagram: / theco2coalition