IUCN World Heritage Outlook 2014 : a conservation assessment of all natural World Heritage sites
2014
Natural World Heritage sites are internationally recognized as having the highest global conservation significance and include iconic places such as the Serengeti, Great Barrier Reef and the Galapagos Islands. These renowned sites offer crucial insight into the successes and challenges on the frontlines of conservation, but only about half of the natural sites have been regularly monitored through the main monitoring mechanisms of the World Heritage Convention.