Before revision: The World Database on Protected Areas (WDPA) is the largest assembly of data on the world's terrestrial and marine protected areas, containing more than 161 ,000 protected areas as of October 2010 , with records covering 236 countries and territories throughout the world.
After revision: The World Database on Protected Areas (WDPA) is the largest assembly of data on the world's terrestrial and marine protected areas, containing more than 200 ,000 protected areas as of October 2017 , with records covering 245 countries and territories throughout the world.