Today, the vast and wonderful diversity of plants, animals, humans, and the atmosphere have largely sustained the planet’s ecological equilibrium. However, the earth is seriously endangered due to chronic radiation, which produces genetic mutations in human beings thanks to nuclear energy. Nuclear power supporters once claimed that it is safe, clean, and costeffective, and that problems such as waste disposal can be solved. They have great faith in technology and dismiss their opponents as “uniformed.” The images of Hiroshima and Nagasaki, as well as the Chernobyl disaster, currently haunt the world. Today, a number of nations do not just possess weapons of mass destruction; they have the capacity to destroy the entire human race. Recently, during the 2022 Russian invasion of Ukraine, Russian President Vladimir Putin threatened the world, claiming he could launch nuclear weapons against any country that interferes with his military invasion of Ukraine. This has raised ethical, legal, and philosophical questions about the existence of nuclear weapons. The essence of this work is to review the problem of nuclear weapons and environmental security. This work argues that nuclear weapons pose a threat to the global ecosystem. This paper submits that there is a need for the abolition of nuclear weapons under United Nations supervision.