Ed Miliband, the Energy Secretary, announced yesterday that planning rules would be changed to make it easier for 6,000 onshore wind turbines to be built. Britain’s “default position” would be to accept new onshore turbines, he said. The expansion in wind farms was included in the Government’s Renewable Energy Strategy, which aims to cut energy use and carbon dioxide emissions, and reduce Britain’s dependence on fossil fuels. Government figures show that household energy bills could rise by up t