In atlanta , the largest metropolitan area in the south - east , 3m residents will lose their main source of drinking water by january if the level of nearby lake lanier continues its precipitous drop 如果附近的拉尼尔湖水位继续急剧下降,生活在亚特兰大(美国东南地区最大的都市区)的三百万居民将有可能在明年一月份失去这赖以生存的饮用水源。