Glacier mass and runoff in the Tropics are projected to diminish by >70% and >10%, respectively, by 2100, under mean of RCP2.6, 4.5 and 8.5 . In Peru, montane ice-field meltwater provides 80% of the water resources for the arid coast where half the population lives . Increasing variability of precipitation has compromised rain-fed agriculture and power generation, particularly in the dry season, exacerbating pressures for new sources of water . There is therefore a risk of increasing conflicts between adaptation to climate change to benefit human and natural communities in the high Andes and maintaining water provisioning for lowland agricultural and urban areas.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report