TS.B.4.3 Glaciers are melting at unprecedented rates, causing negative societal impacts among communities that depend on cryospheric water resources . Over the last two decades, the global glacier mass loss rate has been the highest since the glacier mass balance measurements began a century ago . Melting of glaciers, snow decline and thawing of permafrost have threatened the water and livelihood security of local and downstream communities through changes in hydrological regimes and increases in the potential of landslides and glacier lake outburst floods. Cryosphere changes have impacted cultural uses of water among vulnerable mountain and Arctic communities and Indigenous Peoples , who have long experienced historical, socioeconomic and political marginalisation . Cryosphere change has affected ecosystems, water resources, livelihoods and cultural uses of water in all cryosphere- dependent regions across the world .  
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report