EarthA rich new history of our obsession with extracting Earth's resources Philip Marsden's book Under a Metal Sky is an engrossing look at how we have excavated key metals and rocks over the millennia. It's a story shot through with awe, power, greed and hubris Culture
EnvironmentHow cloud-seeding could help us predict when it will snow These brilliant images show how researchers in Switzerland are using weather-modification techniques to understand how ice crystals form in clouds, an important and poorly understood factor in climate and weather models Regulars