The Doomsday Clock is an internationally recognized design that conveys how close we are to destroying our civilization with dangerous technologies of our own making. First and foremost among these are nuclear weapons, but the dangers include climate-changing technologies, emerging... Read More
The nuclear-armed states have large residual nuclear arsenals, and post-Cold War reductions of nuclear weapons have slowed. Meanwhile, the nuclear nations have undertaken ambitious nuclear weapon modernization programs that threaten to prolong the nuclear era indefinitely.
Russia has taken important steps in modernizing its nuclear forces since early 2013, including the continued development and deployment of new intercontinental ballistic missiles (ICBMs), construction of ballistic missile submarines, and development of a new strategic bomber.
The United States has an estimated 4,650 nuclear warheads available for delivery by more than 800 ballistic missiles and aircraft. Approximately 2,700 retired but still intact warheads await dismantlement, for a total inventory of roughly 7,400 warheads.
Environmental photojournalist Gary Braasch discusses how images have changed over time to illustrate the effects of climate change. This interview is based on Braasch's article—"Climate change: Is seeing believing?"—featured in the November/December 2013 issue of the Bulletin.
Recent research has revealed new facts about the British nuclear arsenal over a 25-year period starting in 1953. This accounting and the authors’ own research support an estimate that the British produced about 1,250 nuclear warheads between 1953 and 2013.
In June 2013, Obama announced his nuclear arms policy goals, asserting his support for a one-third reduction in deployed US strategic nuclear weapons and for “bold” cuts in US and Russian tactical weapons in Europe.
Don't miss the Bulletin of the Atomic Scientists' three-part series on nuclear power in the November/December 2012 issue, the January/February 2013 issue, and the March/April 2013 issue. The Bulletin gathers some of the world's top nuclear energy experts for this special series to answer the question: Just how easy would it be to unplug from nuclear?