-LSB-...] Moreover, this study highlights that modern glacier retreat on Kilimanjaro is much more complex than
simply attributable to «global
warming only», a finding that conforms with the general character of glacier retreat in the global tropics [Kaser, 1999]: a process driven by a complex combination of changes in several different
climatic parameters [e.g., Kruss, 1983; Kruss and Hastenrath, 1987; Hastenrath and Kruss, 1992; Kaser and Georges, 1997; Wagnon et al., 2001; Kaser and Osmaston, 2002; Francou et al., 2003; Mölg et al., 2003], with humidity - related variables dominating this combination.