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AB
CD
EF
GH
IJ
Figure 2. Time-lapse photo couplets of glaciers revealing retreat. (A–B) Mendenhall Glacier, Alaska, retreat of ~550 m from 2007 to 2015.
(C–D) Solheimajokull, Iceland, retreat of ~625 m from 2007 to 2015. (E–F) Stein Glacier, Switzerland, retreat of ~550 m from 2006 to 2015. (G–H) Trift
Glacier, Switzerland, retreat of ~1.17 km from 2006 to 2015. (I–J) Qori Kalis Glacier, an outlet of the Quelccaya Ice Cap, Peru, retreat of ~1.14 km from
1978 to 2016. Photo credits: (A–H) James Balog and the Extreme Ice Survey; (I–J) Lonnie Thompson.
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