TechnologyUnderwater drones may make hiding a nuclear missile sub harder Will a rise in anti-submarine drones mean it's game over for Earth’s best hiding place for a nuclear deterrent as critics claim, wonders David HamblingComment
EarthEl Niño means glaciers in the Andes are melting at record rates Many glaciers will soon be extinct, with huge knock-on effects on human water supplies and unique ecosystems. The race is on to sample them before they’re gone News