求一篇关于楼兰古城消失的的英语描写
Recently, Chinese academy of sciences of scientific expedition LuoBuBo environment drilling LuoBuBo for a comprehensive system of environmental science expedition. According to preliminary infer that expedition in qinghai-tibet plateau dating, with seven to eight million years ago, the rapid uplift LuoBuBo bysouthing north migration, swi intensifies, which eventually led to the whole gradually lake dry. Such an explanation clearly and are not satisfactory, Chinese academy of sciences institute of geology and geophysics ZhouKun uncle professor argues that, LuoBuBo dry reason is very complicated. There is a global problem, but also a regional problem, in addition to natural causes, and human factors. Global climate change is big background drought The qinghai-tibet plateau uplift is regional factors Human LuoBuBo excessive development accelerated disappearing In short, LuoBuBo disappear or has not been determined
