Organic pollutants in soil are an increasing problem, and an inevitable consequence of our wasteful and carefree manufacturing and farming procedures in the past. An Australian team have struck upon a novel solution to the issue, taking inspiration from the mining industry – they have developed a prototype ultrasound cleaner that can rattle the chemical junk out of half a tonne of soil every day. It appears to be an environmentally sound method of removing pollutants that can otherwise escape into the water cycle, and hence the food chain.