Editor’s Note: The future of humanity is inextricably linked to the two principal existential perils facing humanity – climate change and nuclear weapons. Of the two, I say that nuclear weapons represent the Most Inconvenient Truth. That is because climate change is now a given, and it is how we slow (or stop) it, and how we adapt to and mitigate its effects that will affect our survival. As for nuclear weapons, even a limited nuclear war will cause catastrophic global effects, and an exchange of nuclear weapons between the U.S. and Russia would surely mean the end of civilization […]