Much thicker coatings of aerosols at the lower ends of glaciers might explain the tendency in several glaciers, noted in the Indian report, to become narrower in the middle, forming two distinct parts. The slowdown in the retreat of the snout of glaciers could, therefore, be a consequence of the very rapid rise of human population in the hills and desertification caused by overgrazing – purely local factors that boost aerosol levels.
冰舌下端的气溶胶沉降比中部和上部厚得多，这有助于解释某些冰川中部变窄、形成上下两截的现象，印度报告对此特别注意。因此，冰舌后退放缓的根源可能是山区人口激增和过度放牧所导致的荒漠化，也就是导致气溶胶浓度上升的当地因素。