Significant loss of soil inorganic carbon at the continental scale. - Song, Xiao-Dong; Yang, Fei; Wu, Hua-Yong; Zhang, Jing; Li, De-Cheng; Liu, Feng; Zhao, Yu-Guo; Yang, Jin-Ling; Ju, Bing; Cai, Chong-Fa; Huang, Biao; Long, Huai-Yu; et al. (National Science Review, 2022)