12 Jun 2014: Originally published in the Guardian on 12 June 1962: As glaciers start to advance again, evidence suggests that the Earth may be entering a new ice age
Members of Project Pressure go on an expedition to explore a tunnel in the Pallin glacier in northern Sweden that has emerged as the melting glacier has shrunk
We look back at Apple's tech products, including game-changers such as the iMac and iPhone, curiosities like Lisa – and duds, like the 20th Anniversary Macintosh