A line of wind turbines in the horizon on the top of Rhigos Hill Pass in the Cynon Valley, Rhondda Cynon Taf, South Wales, United Kingdom. There are 76 turbines creating a 228M Renewable Energy Wind Farm.  The view is from Pen Y Fan Mountain and looks over the Rhondda Valley on a  misty day.  (photo by Andrew Aitchison / In pictures via Getty Images)