Glacier estimate is on thin ice.
Schiermeier
Quirin
Q
D004463:Ecology / Q000592:standards*; D004784:Environmental Monitoring; D005843:Geography; D057232:Global Warming; D046448:Ice Cover; D007194:India; D017712:Peer Review, Research / Q000592:standards; D018609:Tibet; D013997:Time Factors; D035501:Uncertainty; D014881:Water Supply / Q000032:analysis