[9] In the third Hot-Spot category we find high latitude (Alaska, ALA), mid-latitude (Central Asia, CAS; Tibetan Plateau, TIB; Eastern North America, ENA), and sub-tropical (Sahara, SAH; South Equatorial Africa, SQF) regions. Table 2 shows that the main contributors to the RCCI vary from region to region. In particular, the main contribution to the index for the SQF region, which is the most pronounced Hot-Spot of sub-Saharan Africa, is associated with changes in interannual variability. By contrast, significant contributions to the RCCI for the ENA region come from all sources.