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
Mainland China area occupied by PRC as "mainland", since it is officially considered still part of the ROC territory but just enemy occupied. In contrast, the pro-Taiwan independence Democratic Progressive Party (DPP) prefer to use the term "China" instead, referring to the PRC, to imply that Taiwan (ROC) is separate from China. Related to this naming and broader national identity issue, the DPP would also like to amend the ROC constitution to limit its scope and territorial description to the Free area of the Republic of China only and rectify the ROC country name to "Republic of Taiwan" instead, thereby eliminating the