From Bryn Glover, Kirkby Malzeard, North Yorkshire, UK
Arguing that talk of a “localised” nuclear conflict is ignorant and dangerous, you refer to “nuclear winter” (22 April, p 5). During the cold war, some people used to carry around the 1816 poem Darkness by Lord Byron. It refers to the “year without a summer” that followed the eruption of the volcano Tambora. It tells us that any nuclear winter could have far worse consequences. Maybe we should resume the poem-carrying habit.
