Sadiq Khan to tell London councils they should ban fracking

Health dangers and high water use of shale gas extraction make it unacceptable, says mayor’s draft plan for the capitalSadiq Khan will in effect ban fracking in London – and warns that extracting shale gas represents a toxic health risk.In a controversial move, the London mayor will set out in plans to be published this week that councils across the capital should block the exploration, appraisal or production of shale gas via hydraulic fracturing, which sees rocks blasted with water