They war-gamed dimming the Sun. It went even worse than you think.

A London climate war game on solar geoengineering collapsed amid geopolitical distrust, not a cyber or AI issue.

Researchers at Queen Mary University of London ran a war game on governing solar radiation modification, a climate technique meant to cool Earth by reflecting sunlight. Players representing governments, NGOs, and companies failed to agree rules as distrust and competing national interests blocked a deal. The exercise referenced private geoengineering interest, including Stardust Solutions and comments from Elon Musk, but it is not a cybersecurity or AI security story.