The London Underground wants to harness heat accumulated to help warm hundreds of homes. The project, which is the first of its kind in Europe, could even help reduce spiralling energy bills.
Dan Hewitt reports:
More top news
Police are hunting for the owners of this jewellery which they believe is stolen
Police investigating the murder of a 20-year-old man in East London have named him as Moosakhan Nasiri.
18 year old Shafiq Smith was charged early this morning with the murder of Omid Saidy