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
Taiwan, China Since then, two Chinas have existed, although the PRC was not internationally recognized at the time. The Republic of China government, who received Taiwan in 1945 from Japan then fled in 1949 to Taiwan with the aim to retake mainland China and retained the name "Republic of China". Both the ROC and the PRC still officially (constitutionally) claim mainland China and the Taiwan Area as part of their respective territories. In reality, the PRC rules only Mainland China and has no control of but claims Taiwan as part of its territory under its "One China Principle". The ROC, which only