Sanity Check

What does Diet Coke have to do with America’s energy supply? In this episode, Dr. David Legates explores that question through a surprising comparison from James Taylor of the Heartland Institute. Taylor’s Diet Coke analogy exposes the flaw in politicians’ “all-of-the-above” approach to energy: when expensive sources enter the electricity mix, consumers can end up paying more for power while receiving less reliable service.
As coal and natural-gas plants close, electricity demand continues rising from data centers and other energy-intensive industries. Meanwhile, policymakers are investing in wind, solar, batteries, hydrogen, offshore wind, and other alternatives while treating fossil fuels as a problem rather than a source of reliable energy. Dr. Legates examines what those choices mean for electricity prices, grid reliability, taxpayers, and ratepayers—and why America’s energy policies could leave households paying more to keep the lights on.

https://www.youtube.com/watch?v=EEXOVoyyo7c
https://epsa.org/understanding-the-costs-of-integrating-energy-resources-in-pjm-analyzing-full-cycle-levelized-costs-of-electricity/

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For nearly two decades, the EPA’s 2009 Endangerment Finding has served as a legal foundation for federal regulation of greenhouse gas emissions. Its history begins with the Supreme Court’s 2007 decision in Massachusetts v. EPA, continues through the Obama administration’s Endangerment Finding, and extends through the greenhouse gas regulations adopted under subsequent administrations.
In February 2026, the Trump EPA rescinded the Endangerment Finding as it applied to motor vehicles and repealed the federal greenhouse gas standards that followed from it. In September, EPA finalized a major repeal of greenhouse gas requirements for fossil-fuel-fired power plants while proposing to rescind the remaining greenhouse gas findings and regulations governing the power sector.
What does all of this mean for federal climate regulation?
In this episode, we trace the legal history behind the Endangerment Finding, examine the scientific and regulatory arguments surrounding it, and explain how a provision of the Clean Air Act became the foundation for decades of federal greenhouse gas regulation. We also examine what the 2026 EPA actions actually changed, what remains in place, and what Congress, the courts, states, and future administrations could still do.
The Endangerment Finding has been at the center of the legal battle over greenhouse gas regulation for years. Understanding its history helps explain why its reversal represents such a significant shift in federal environmental policy—and why the future of that policy remains unsettled.
https://www.epa.gov/climate-change/endangerment-and-cause-or-contribute-findings-greenhouse-gases-under-section-202a

https://apnews.com/article/epa-power-plants-trump-coal-gas-climate-cac1c2c75f8656d8eaf5f0a240edae15

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What can a devastating Himalayan avalanche teach us about climate change—and about the growing role of artificial intelligence in scientific research?
In this episode, Dr. David Legates examines claims that a catastrophic 2026 avalanche in Nepal was caused by human-induced climate change. He explains why individual weather and climate events cannot simply be attributed to climate change and puts the disaster in historical context by comparing it with other major glacial and rock-ice avalanches.
But the discussion takes an unexpected turn when Dr. Legates examines the research paper that prompted his investigation. The paper was generated entirely by AI and explicitly acknowledged that it had not undergone peer review or human verification. That raises a much larger question: When AI conducts research and produces convincing scientific prose, who is responsible for the claims it makes?
Dr. Legates discusses both the promise and limitations of AI as a research tool, arguing that AI can be a powerful force multiplier—but that human expertise, critical thinking, and verification cannot be outsourced.
https://www.researchgate.net/publication/413842707_The_Nepal_Avalanche_26_Aug_2026_an_unprecedented_event_A_comparative_historical_assessment
https://www.stimson.org/2026/a-cascading-disaster-on-the-china-nepal-border-what-to-know-about-the-august-2026-rasuwa-flood/

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The U.S. Supreme Court is set to hear one of the most consequential climate-related cases in the country this October: Suncor Energy v. County Commissioners of Boulder County. At issue is whether cities and counties can sue oil and gas companies for alleged damages caused by climate change, or whether federal law prevents state courts from hearing these claims.
Boulder County and the City of Boulder are seeking damages they say are needed to address flooding, wildfires, drought, and other costs they attribute to fossil fuel use. The energy companies argue that climate change is a global issue that cannot be addressed through a patchwork of local lawsuits that could effectively dictate national energy policy.
In this episode, Dr. David Legates examines the history of the Boulder case, the arguments before the Supreme Court, and what the justices' decision could mean for dozens of similar lawsuits across the country. He also takes a step back to ask a more fundamental question: Who should be responsible for the costs attributed to climate change, and can we really attribute every flood, fire, drought, or other environmental event to fossil fuel emissions?
Whatever the Court decides, this case could have enormous consequences for the energy industry, local governments, and the future of climate litigation in America.
https://www.washingtonexaminer.com/news/supreme-court/4675555/supreme-court-next-term-cases-climate-immigration/
https://www.oyez.org/cases/2026/25-170
https://www.scotusblog.com/cases/suncor-energy-inc-v-county-commissioners-of-boulder-county/

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Millions of Americans believe that everything from groceries and cars to homes and vacations has become impossibly expensive. But are things actually less affordable than they were in the past, or are we measuring affordability the wrong way?
In this episode of Sanity Check, Cal Beisner revisits a question raised during his recent appearance on David Wheaton’s The Christian Worldview: Why are so many Americans, particularly younger generations, increasingly attracted to socialism? One commonly cited reason is the perception that the American economy no longer provides an affordable path to a good life.
Beisner examines that claim by looking beyond sticker prices and comparing the cost of goods over time in inflation-adjusted dollars, quality, quantity, amenities, and—most importantly—the amount of time an average worker must labor to afford them. Using housing as a primary example, he shows how dramatically the size, quality, comfort, and amenities of the average American home have changed over the past 75 years.
From housing and automobiles to air travel, clothing, food, and technology, the evidence tells a more complicated story than the popular narrative of an ever-worsening affordability crisis. Beisner also considers the notable exceptions of education and medical care and explains why their rising costs deserve particular attention.
What does this mean for Christians thinking about economics, socialism, and the state of American prosperity? And what should we make of the widespread belief that the good life is increasingly out of reach?
Listen to this episode of Sanity Check to examine the “affordability crisis” from a different perspective.
https://thechristianworldview.org/
https://humanprogress.org/u-s-housing-became-much-more-affordable-over-the-last-40-years/

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Our work is entirely supported by donations from people like you. If you benefit from our work and would like to partner with us, please visit www.cornwallalliance.org/donate.