The Human Impacts Database

A collection of useful numbers for quantifying the impacts of the human presence on Earth.

This quantity is a single measurement of the quantity at a given point in time (2006-2015).


Value:		(1.23 ± 0.24) × 10¹⁴ kg / yr see this value in other units This is equivalent to... 123 ± 24 Gt / yr
HuID:		74329
Relevant Year(s):		2006-2015
Summary:		IPCC estimate of mountain glacier mass loss. See Table 2A.1 of source.
Method:		Estimates of glacier mass change are based on aggregation of geodetic and in situ glaciological observations (Zemp et al. 2019, DOI:10.1038/s41586-019-1071-0) with satellite gravimetric observations (Wouters et al. 2019, DOI:10.3389/feart.2019.00096). 11 mountain glacier regions are observed here. Uncertainty represents a 95% confidence interval calculated from standard error propagation of the 95% confidence intervals reported in the original sources assuming them to be independent.
Source:		IPCC (Intergovernmental Panel on Climate Change) The Ocean and Cryosphere in a Changing Climate. (2019)
Dataset:		Provides summary statistics for mass loss from major types of glacierized regions (table2.A.1_summary_statistics.csv) regional resolution
Original Data License:		IPCC Limited Use Policy
Added By:		nsarai