“Reaching a commensurate level of urgency and funding against climate change as the Manhattan Project would be a start. That project cost about $34 billion in today’s dollars. Today, we spend $60 billion annually in the U.S. on nuclear weapons. There is plenty of room for prioritizing things that make the world better, not worse.

As J. Robert Oppenheimer said: “Mankind must unite — or we will perish.” I see as much hope as peril in that statement.”