Why the snows of Kilimanjaro decreased

Kilimanjaro snow loss due to deforestation, which is a form of human caused. climate change.  While the reason, decreasing humidity,  does appear, they essential reason is left out of the article.  As is the scientific study.

 It appears that decreasing specific humidity instead of temperature changes has caused the shrinkage of the plateau glaciers since the late 19th century.

The study, Kilimanjaro's vanishing ice due to tree-felling, as well as the information from it, is not found on Wikipdia.