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.

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.

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.

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

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🧪 Learn more about the CO2 Learning Center: https://co2learningcenter.com
📚 CO2 Coalition: https://co2coalition.org

#ClimateScience #ScientificMethod #CO2Coalition #Education #CriticalThinking

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.