Tashi Ratan, a 60-plus yak herder in Phuktsey, Ladakh, serves up hot tea to stray passers-by near one of the first and largest artificial glaciers in the region. Ratan carries the ingredients for the tea, along with food, in a backpack as there are few human companions to bank upon in the upper reaches of this area. Ratan and his family depend on a small patch of land and about 25 yaks for sustenance Photo: Aesha Datta

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