When the clock started
The clock’s hands, since 1947, have been set at the beginning of every year by the bulletin. Originally, the clock was concerned with the threat of an actual nuclear war between the cold war superpowers, the US and the Soviet Union. Recently, however, the clock has also come to include and reflect the global threat from climate change, which was first included as a factor by the bulletin in 2007.
At various points over the years, the clock has been adjusted to react to world events. In 1947, its original setting was at seven minutes to midnight. It moved up to just two minutes in 1953 when both the US and the Soviet Union tested their new, and more destructive, hydrogen bombs. The clock, though, never moved as close again to midnight throughout the rest of the cold war.
Whenever the hands were moved forward, they tended to be brought back again later to reflect any warming of relations between Washington and Moscow – such as with the detente of the early 1970s or following the signing of various arms limitation agreements. These agreements would include the likes of the Partial Nuclear Test Ban Treaty of 1963, the Strategic Arms Limitation Talks (Salt) of the 1960s and 1970s, the ABM treaty of 1972, the INF agreement of 1987, the Strategic Arms Reduction Treaty (Start I) of 1991, and the follow-on New Start of 2010.
Indeed, in 1991, and in the halcyon days – in tension-reduction terms – of the immediate post-cold war period, the Doomsday Clock’s hands were moved further away from the midnight hour than at any point since 1947: they stood at a comforting 17 minutes.
In 2023, the world, it seems – and if the Doomsday Clock is to be treated with credence – is not in a good place. But this clock is, though, a warning device, albeit symbolic. As such, it can hopefully serve to concentrate minds and to bring to bear wise counsels who can act to avert the catastrophe (whether nuclear- or climate-induced) that the clock’s founders had designed it to prevent.