Regions where the climate is intermediate between semiarid and humid, and the precipitation supports dense growth of tall or short grasses, but not forests. Sub-humid lands, including arid and semi-arid regions, grasslands, savannahs, and Mediterranean landscapes, encompass approximately 47% of the Earth's terrestrial area, with the largest areas found in Australia, China, Russia, the United States, and Kazakhstan. There are six countries with at least 99% of their area classified as dry and sub-humid lands: Botswana, Burkina Faso, Iraq, Kazakhstan, the Republic of Moldova, and Turkmenistan. (Source: MMA, draft based on CBD and USDA)