I'll send you a text http://www.elainecsmith.com/rosuvastatin-atorvastatin/ rosuvastatin online  SIR – You report (July 14) that Ed Davey will announce that wind farm subsidies are to be cut from 20 years to 15 years. Does this have any connection with the mounting evidence that wind turbine efficiency begins to decline after eight years, and that they need to be replaced after 12-15 years?