Should the EPA repeal its 2009 ruling that declared carbon dioxide and other greenhouse gases a danger to public health? The answer could reshape America’s entire climate policy.

In this episode, Dr. E. Calvin Beisner sits down with renowned physicist Dr. Will Happer—emeritus professor at Princeton University and former JASON advisor to the U.S. government—to discuss the EPA’s proposal to rescind the so-called “Endangerment Finding.” Together, they unpack the scientific uncertainties, legal arguments, and economic implications behind the debate, exploring what’s really at stake for energy policy, environmental regulation, and human flourishing.

1. https://www.epa.gov/regulations-emissions-vehicles-and-engines/proposed-rule-reconsideration-2009-endangerment-finding
2. https://www.epa.gov/newsreleases/epa-releases-proposal-rescind-obama-era-endangerment-finding-regulations-paved-way 
3. https://www.federalregister.gov/documents/2025/08/01/2025-14572/reconsideration-of-2009-endangerment-finding-and-greenhouse-gas-vehicle-standards

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