Amazon has revealed plans to shut three UK warehouses in a move which will impact 1,200 jobs.The company has launched consultations over the closure of sites in Hemel Hempstead, Doncaster and Gourock, in the west of Scotland.All workers at the sites will be offered roles at other Amazon locations.The online technology giant has also revealed plans for two new major fulfilment centres in Peddimore, West Midlands, and Stockton-on-Tees, County Durham, which will create 2,500 jobs over the next three years.