The Greening and Wetting of the Sahel Have Leveled off since about 1999 in Relation to SST. - Tiexi Chen; Shengjie Zhou; Chuanzhuang Liang; Daniel Fiifi Tawia Hagan; Ning Zeng; Jun Wang 094; Tingting Shi; Xin Chen; A. Johannes Dolman (Remote. Sens., 2020)