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 Province, People's Republic of China refers to some ROC government offices and institutions using generic description which does not imply endorsement of the ROC's claim to be a legitimate government of either Taiwan or China. The precise replacements used are not officially designated, so the politically-designated names for Taiwan have small variations across different source from within the PRC. For some cases, where the name does not significantly imply sovereignty, the name remains the same, such as for the "Mainland Affairs Council", "County" and "Mayor". The PRC's current policy proposal for a potential future reunification with Taiwan includes a proposal for Taiwan to become a