The greatest danger to great powers is not each other; it is crises enabled by failures to collaborate with each other to counter threats from third sources. Climate crises, economic crises, and security crises are the big three threats to the survival of our grandchildren. These crisis risks are increasingly interrelated. The best way to prevent tomorrow’s crises of all three kinds is to prevent today’s crises of all three kinds. 10 points are advanced on how global civil society might encourage this.