The rate of deforestation in Cambodia is one of the highest in the world and it is often perceived as the most destructive, singular environmental issue in the country. Cambodia's primary forest cover fell from over 70% in 1969 to just 3.1% in 2007. In total, Cambodia lost  of forest between 1990 and 2005 –  of which was primary forest. Since 2007, less than  of primary forest remain with the result that the future sustainability of the forest reserves of Cambodia is under severe threat.