They War-Gamed Dimming the Sun. It Went Even Worse Than You Think

A first-of-its-kind simulation of solar geoengineering showed that when geopolitics is involved, the outcome is worse than expected. The simulation, which modeled the effects of large-scale solar radiation management (SRM), revealed that countries may engage in a new arms race, making the situation more complex and potentially more dangerous. The simulation involved 12 countries, each with its own SRM program, and demonstrated how they might interact and respond to each other's actions. The results suggest that SRM could become a tool for national security, leading to increased tensions and the risk of conflict.