In this essay, Amory Lovins discusses the problems of proliferation, oil, and climate. These three formidable problems, though treated as distinct, share common causes and solutions. New energy and climate solutions can strengthen security and prosperity by shifting strategy for the NPT Review Conference. Nuclear power’s astonishing eclipse by cheaper, faster, more climate-protective competitors—if acknowledged and exploited—can simultaneously bolster nonproliferation, energy security, global development, and climate protection, all at a profit. Foreign Policy published a condensed version of this paper in January 2010.