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
History of foreign relations of the People's Republic of China however, remain unresolved: the issue of Taiwan. Chiang Kai-shek and his forces fled to Taiwan after the founding of the People's Republic of China in 1949. The government they established there, the "Republic of China", continued to claim authority as the government of the Chinese nation almost four decades after the founding of the People's Republic. Although China's goal of reunifying Taiwan with the mainland remained unchanged, the previous, more militant Chinese policy of "liberating Taiwan" was replaced in the 1980s by the concept of reunification under the "one country, two systems" policy. The agreements on Hong Kong and Macau