Sir – On August 6, 1945, a nuclear bomb was dropped on Hiroshima in Japan killing as many people as live in Oxford in an instant.

Today each nuclear warhead on the missiles carried by Britain’s Trident submarines could each kill eight times that many. Nuclear weapons are useless, illegal and could destroy our planet.

But the Coalition Government has already begun to spend up to £25bn on renewing Trident. We should be spending that money on jobs, the health service and schools instead. Britain should be an example to the world by scrapping its dreadful weapons of mass destruction. Oxford has declared itself a ‘nuclear free’ city, but it is time we began to create a world free of all nuclear weapons.

John Tanner

Board member for a Cleaner, Greener Oxford city councillor for Littlemore and county councillor for Isis