Solar geoengineering is one of the most controversial ideas in climate policy today.
The idea sounds like science fiction: spraying millions of tons of sulfur high into the atmosphere to reflect sunlight and cool the planet.
But solar geoengineering is no longer just a theoretical concept.
Governments, universities, startups, and billionaire-backed investors are investing in technologies designed to artificially cool the Earth by reflecting a portion of the sun’s energy back into space. Supporters argue these technologies could help slow global warming. Critics warn they could fundamentally alter global weather patterns, threaten food security, increase geopolitical tensions, and distract from addressing the root cause of the climate crisis: our continued dependence on fossil fuels.
Friends of the Earth explores one of the fastest-growing, and most controversial areas of climate intervention research.
In this short documentary, you’ll learn:
• What solar geoengineering is and how it works
• Why interest in this technology is rapidly growing
• The science behind Stratospheric Aerosol Injection (SAI), Marine Cloud Brightening (MCB), and other geoengineering proposals
• The risks to weather, food security, biodiversity, and global stability
• Why “termination shock” is one of the greatest concerns surrounding solar geoengineering
• Who is driving the push for solar geoengineering
• Why a growing global movement is calling for a Non-Use Agreement
• Why Friends of the Earth believes the real path forward is reducing emissions—not engineering the climate
As interest in solar geoengineering grows around the world, this issue is becoming increasingly urgent. What role should humanity play in deliberately altering the Earth’s climate?
We hope this documentary helps inform this important discussion.
Learn more about Friends of the Earth’s campaign on solar geoengineering:
https://foe.org/blog/what-is-solar-geoengineering/
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