What will remain of our plastic, cans, and other junk long after humans have vanished?What kind of fossils will we leave, as relics into the far future? A blizzard of new objects has suddenly appeared on Earth: plastic bottles, ballpoint pens, concrete flyways, outsize chicken bones, aluminium cans, teabags, mobile phones, T-shirts. They''re produced for our comfort and pleasure ^&#8212^ then quickly discarded. The number of our constructions has exploded, to outweigh the whole living world. This new-made treasure chest underpins our lives. But it is also giving a completely new style of fossilization to our planet, as hyper-diverse and hyper-rapidly-evolving technofossils spin out of our industrialized economy. Designed to resist sun, wind, rain, corrosion and decay, and buried in soils, seafloor muds and the gigantic middens of our landfill sites, many will remain, petrified, as future geology. What will these technofossils look like, in future rock? How long will they last and how w