Nuclear weapons

Christopher Nolan’s film “Oppenheimer” has focused new attention on the legacies of the Manhattan Project – the World War II program to develop nuclear weapons. As the anniversaries of the bombings of Hiroshima and Nagasaki on Aug. 6 and Aug. 9, 1945, approach, it’s a timely moment to look further at dilemmas wrought by the creation of the atomic bomb. The Manhattan Project spawned a trinity of interconnected legacies. It initiated a global arms race that threatens the survival of humanity and the planet as we know it. It also led to widespread public health and environmental damage from nuclear weapons production and testing. And it generated a culture of governmental secrecy with troubling political consequences. As a researcher examining communication in science, technology, energy and environmental contexts, I’ve studied these legacies of nuclear weapons production. From 2000 to 2005, I also served on a citizen advisory board that provides...

The Biden administration has agreed to provide Ukraine with depleted uranium shells to equip M1A1 Abrams tanks that the U.S. is sending there. Britain has already delivered tanks to Ukraine equipped with depleted-uranium shells. DU munitions, developed in the 1970s, are not nuclear weapons and do not produce a nuclear explosion. But soldiers or civilians can be exposed to the uranium, either in combat or afterward. Health physicist Kathryn Higley explains what depleted uranium is and what’s known about potential health and environmental risks. What is depleted uranium? Uranium, symbolized by the letter U, is a naturally occurring element that is radioactive. Natural uranium is composed primarily of three isotopes: U-234, U-235 and U-238. These isotopes are all uranium and have the same chemical characteristics, but they have slightly different masses, as indicated by the numbers 234, 235 and 238. Depleted uranium is mainly U-238, with small amounts of other isotopes, in...

The 2024 Nobel Peace Prize has been awarded to Nihon Hidankyo, the Japan Confederation of A- and H-bomb Sufferers Organizations. Many of these witnesses have spent their lives warning of the dangers of nuclear war – but initially, much of the world didn’t want to hear it. “The fates of those who survived the infernos of Hiroshima and Nagasaki were long concealed and neglected,” the Nobel committee noted in its announcement. Local groups of nuclear survivors created Nihon Hidankyo in 1956 to fight back against this erasure. Atomic bomb survivor Masao Ito, 82, speaks at the park across from the Atomic Bomb Dome in Hiroshima in May 15, 2023. Richard A. Brooks/AFP via Getty Images Around the same time that Nihon Hidankyo was formed, Japan produced another warning: a towering monster who topples Tokyo with blasts of irradiated breath. The 1954 film “Godzilla” launched a...