New figures released by Scottish Natural Heritage have added urgency to the John Muir Trust’s call for better protection of Scotland’s wild land. The ‘area without visual influence of built development’, one of Scottish Natural Heritage’s key indicators of the state of the Scottish environment, fell from 31 per cent in January 2008 to 28 per cent in December 2009. This drop represents an area around 14 times the size of Glasgow. Previous SNH figures showed the area without visual influence of built development had declined from 41 per cent to 31 per cent between 2002 and 2008. Helen McDade,…