They war-gamed dimming the Sun. It went even worse than you think.
Summary
Ars Technica reports on a WIRED article about a London-based war game that simulated governance around solar geoengineering (dimming the sun). The exercise exposed deep geopolitical fault lines, with US and China negotiating under mutual suspicion and other nations wary of dominance, hindering any binding agreement. A later twist revealed a fossil-fuel-backed NGO attempting to sway outcomes, illustrating how private interests can complicate scientific governance. The piece underscores the difficulty of international governance for high-stakes climate technologies and the risk of a looming geostrategic competition.