Since the government ruled out new onshore wind farms in England ? a promise in its 2015 manifesto ? energy companies have been forced offshore, making the UK the world?s offshore leader. Allowed to develop beyond the vision of land-dwellers who see wind farms as a blot on the countryside, the turbines have grown steadily larger, as have the farms to which they belong. Over time, the diameter of the blades have enlarged. A turbine commissioned in 2002 swept 80 metres; in 2011 it was 120 metres. By 2020, it will be 180 metres. Wind energy costs less, and will go on costing less, because the turbines are growing taller and the blades longer. http://www.inkl.com/newsletters/morning-edition/news/wild-is-the-wind-the-resource-that-could-power-the-world?