Geography of Taiwan water supplies, and trade in endangered species. Though regulation of sulfate aerosol emissions from petroleum combustion is becoming stringent, acid rain remains a threat to the health of residents and forests. Atmospheric scientists in Taiwan estimate that more than half of the pollutants causing Taiwan's acid rain are carried from mainland China by monsoon winds. Geography of Taiwan Taiwan, formerly known as Formosa, is an island in East Asia; located some off the southeastern coast of mainland China across the Taiwan Strait. It has an area of , which includes other nearby islands such as Penghu (). The East China
Four-Stage Theory of the Republic of China By this theory, Chen pointed out that the Republic of China was at the 4th stage after the first ruling party rotation of the central government in 2000. That is, Taiwan, with the official name called the "Republic of China", is already an independent sovereign state separate from People's Republic of China. This theory is welcomed by the mainstream of the Pan-Green coalition (led by the Democratic Progressive Party) in Taiwan, which supports eventual "de jure" Taiwan independence; but is not welcomed by most members of the Pan-Blue coalition (Kuomintang), which supports the eventual reunification of Taiwan with mainland China