The Great Simplification with Nate Hagens Will We Artificially Cool the Planet? The Science and Politics of Geoengineering with Ted Parson
64 snips
Nov 12, 2025 In this enlightening conversation, Ted Parson, a noted expert in environmental law and climate policy, dives into the pressing issue of geoengineering as a potential tool to combat climate change. He explains the mechanics and risks of stratospheric aerosol injection, discussing its plausibility for cooling the planet. Ted emphasizes the necessity of proactive governance and international dialogue, as well as the ethical implications of altering Earth's systems. He also shares insights on how past volcanic eruptions inform our understanding of aerosol effects, making for a thought-provoking listen.
AI Snips
Chapters
Books
Transcript
Episode notes
Use SAI Only As A Stopgap
- Treat SAI as a complementary, temporary tool, not a substitute for emissions cuts.
- Continue mitigation, scale carbon removal, and adapt while researching geoengineering responsibly.
Scale, Cost, And Logistics Of SAI
- Cooling ~0.5°C could be achieved with ~100–200 modified high-altitude aircraft and ~5–10 million tons sulfur/year.
- Estimated annual cost is roughly $10–20 billion, cheap compared to global GDP.
Deployment Is Hard To Hide Or Rush
- SAI is observable and requires years to scale, so secret, instant deployment is implausible.
- Capability development would trigger international attention and diplomatic conversations.
