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

AI Summary

A simulation of solar geoengineering examined how attempts to dim sunlight to slow climate change could intensify geopolitical tensions and trigger an arms race. The exercise highlighted the risks of states pursuing or contesting such interventions.

Solar geoengineering could buy humanity time against climate change—or trigger a dangerous new arms race. A first-of-its-kind simulation offered a glimpse of what happens when geopolitics takes the wheel.