Macau skyline buildings and neighborhoods covered in thick smog due to ozone pollution

macau skyline buildings climate air pollution mainland china south coast fog populous smog asia toxic air population congestion chinese macao poor visibility methane neighborhood santo antonio sar architecture climate change housing household residential houses people dense tourist attraction cityscape urban macanese colony territory coastal islands old city guangdong construction hotels economy carbon dioxide greenhouse gas coastal water pollution carbon emmissions real estate public housing hazardous tourists destination