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Downstream: Elites Have No Plan for Climate Change w/ Bill McGuire

Aug 25, 2026 · 1h 25m

Summary

Host Aaron Bastani interviews volcanologist Bill McGuire, who argues that climate breakdown is accelerating faster than predicted, citing recent UK heatwaves and harvest failures. McGuire draws parallels between current warming and geological events like the PETM, noting today’s carbon injection rates are unprecedented. He discusses his personal adaptation strategies, the inadequacy of the 1.5°C target, and the urgent need to prepare for extreme weather and potential food rationing.

Topics discussed

Introduction: Climate change as a gradual then sudden crisis Guest background: From astronaut dreams to volcanology Volcanic hazards: La Palma, Campi Flegrei, and tsunamis Ignoring warnings: Political inaction on natural hazards Personal adaptation: Moving to the Peak District for safety Record heat and drought: The speed of climate breakdown El Nino and the 1.5C threshold: Is it already breached? Deep time history: PETM, mass extinctions, and feedbacks Historical climate shifts: 8.2KA event and Roman Warm Period Future projections: Pliocene conditions and societal collapse Wet bulb temperature: The limit of human survivability Sea level rise: Accelerating rates and ice sheet instability Geoengineering risks: Solar radiation management and termination shock Carbon removal: Basalt weathering and Jevons paradox Conclusion: Decarbonization, biodiversity, and the sixth extinction
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