“…Most studies of environmental changes in western China have focused on recent decades (Fu, Chen, Li, & Wang, ; Luo, Niu, Lin, Liu, & Yin, ; X. Y. Tang et al, ; Xu et al, ; Zheng & Yao, ). However, these studies were generally based on recent climate records from lakes, ice sheets, and loess (Julie et al, ; Luo et al, ; B. Y. Sun, Liu, Sun, & An, ; X. Y. Tang et al, ; T. Zhang, Ding, Xiao, Zhang, & Du, ) and carbon cycles (Guo et al, ; Q. F. Wang, Zheng, Zhu, & Yu, ) or on the Neoproterozoic glaciations (Liu et al, ).…”