Downstream: Elites Have No Plan for Climate Change w/ Bill McGuire
Summary
Volcanologist Bill McGuire joins to discuss the accelerating pace of climate breakdown, noting that current heating rates are ten times faster than the Paleocene-Eocene Thermal Maximum. He analyzes geological history, from the Moon’s formation to the 8.2ka event, to contextualize modern risks like food rationing and extreme heatwaves. McGuire also highlights underpriced geophysical hazards, including potential mega-tsunamis from La Palma and volcanic threats in Naples, arguing that political inaction ignores imminent existential dangers.
Topics discussed
Introduction: The sudden realization of climate crisis
Guest background: From geology to volcanology
Volcanic hazards: Tsunamis and the Campi Flegrei caldera
The failure of early warning systems and political apathy
Personal adaptation: Moving to the Peak District for safety
The speed of change: UK heatwaves and record-breaking droughts
El Niño, the 1.5°C threshold, and the failure of COPs
Defining climate breakdown vs. climate change
Deep time: The Moon, Hadean era, and the Cambrian explosion
PETM: Ancient lava eruptions and positive feedback loops
The 8.2ka event: Meltwater, earthquakes, and tsunamis
Historical climate cycles: Little Ice Age and Roman warm period
CO2 levels: Comparing today to the Pliocene and Miocene
Future projections: 3°C by 2050 and societal breakdown
Wet-bulb temperature limits and the threat to human survival
Sea level rise and the political debate on climate denial
Geoengineering: Carbon capture and solar radiation management
Practical solutions: Urban cooling, transport, and diet
The profit motive, fossil fuels, and the lack of wisdom
Extinction examples and the future of billionaire control
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