The humanitarian and environmental impact of nuclear weapons testing, detonations and accidents has become a topic of renewed interest within the past decade. Since 1950, at least 32 nuclear weapons accidents, known as “broken arrows,” have been reported, the effects of which have ranged from moderate to severe, and sometimes even fatal. The catastrophic consequences of intentionally detonating nuclear weapons are even greater cause for concern, as proven by the destruction, death and long-term residual effects of the Hiroshima and Nagasaki bombings in 1945. Modern nuclear weapons are exponentially more powerful than those used in 1945, with the potential for massive, widespread devastation. Recently, America began building a massive nuclear weapon with a destructive power twenty times greater than the atomic bomb that devastated Hiroshima. With approximately $100 billion invested into this acquisition alone, the prevalence and threat of nuclear weapons is an issue of global concern. The future of humanity and the environment is threatened by the existence of these weapons, making nuclear disarmament a critical objective for survival. Entry into force of the TPNW has been a major leap forward in this direction and must be acted upon globally to secure humanity’s future.