Swiss glaciers 1850–2100

2021

52 of 59 measured glacier tongues retreated. Swiss glaciers lost 1.0% of their volume.

Glaciers measured59single-year length change
Advancing712%
Retreating5288%
Median change−9.6m
Swiss ice volume−1.0%change over the year
Mass balance−0.47m w.e.mean of 30 glaciers
Events

What happened

2021
policy

A border on the move

The Swiss–Italian border follows the watershed. As the Theodul Glacier melted, the watershed moved under a mountain hut.

Length change

59 tongues measured

GlacierCantonChange
FindelgletscherValais−132 m
Vadret da MorteratschGraubünden−56.6 m
MuttgletscherValais−51.6 m
Vadret dal CambrenaGraubünden−50.7 m
Bas Glacier d'ArollaValais−49.7 m
Glacier du TrientValais−40 m
GornergletscherValais−38.9 m
Grand DésertValais−37.9 m
Glacier du TseudetValais−35 m
Glacier de Moiry zentralValais−27.4 m
Vadrec del FornoGraubünden−27.1 m
Glacier d'OrnyValais−26.4 m
Kanderfirn NBern−25 m
EigergletscherBern−22.9 m
St. AnnafirnUri−22.5 m
UnteraargletscherBern−21 m
GriesgletscherValais−20.4 m
OberaargletscherBern−20.1 m
Ghiacciaio del CavagnööTicino−16 m
Glacier de TsanfleuronValais−15.3 m
RhonegletscherValais−14.5 m
Glacier de Tsijiore Nouve zentralValais−13.9 m
Glacier de ValsoreyValais−13.1 m
SteigletscherBern−12.5 m
Glacier de CheilonValais−12.5 m
GlärnischfirnGlarus−11.7 m
Vadrec da l'AlbignaGraubünden−10.5 m
Vadret da Porchabella WGraubünden−10.3 m
Glacier de PaneirosseVaud−9.8 m
BrunnifirnUri−9.6 m
WallenburfirnUri−9.6 m
Glacier de Tortin zentralValais−9.2 m
ParadiesgletscherGraubünden−8.9 m
Vadret da PalüGraubünden−8.9 m
SilvrettagletscherGraubünden−8.7 m
Unterer GrindelwaldgletscherBern−8.7 m
Griessgletscher (Unterschächen)Uri−8.3 m
RiedgletscherValais−7.9 m
Ghiacciaio di ValleggiaTicino−7.2 m
Vadret da SesvennaGraubünden−7 m
Grosser AletschgletscherValais−4.9 m
Glacier de la Plaine MorteBern−4.1 m
PizolgletscherSt. Gallen−3.6 m
TiefengletscherUri−2.5 m
BisgletscherValais−2.4 m
Vadrecc di BrescianaTicino−2 m
Hinter SulzfirngletscherGlarus−1.9 m
VorabgletscherGraubünden−1.7 m
BifertengletscherGlarus−1.7 m
Vadret TiatschaGraubünden−0.9 m
Oberer GrindelwaldgletscherBern−0.8 m
Ammertegletscher EBern−0.3 m
Glatscher da LavazGraubünden+0.1 m
TriftgletscherBern+0.3 m
Chline Gletscher (Pfäfers)St. Gallen+1.9 m
Vadret da LischanaGraubünden+2.2 m
Glacier de SaleinazValais+3.4 m
GamchigletscherBern+4 m
ChelengletscherUri+7.3 m
Mass balance

30 glaciers

GlacierAnnual balance
Glacier de la Plaine Morte−0.96 m w.e.
Glacier d'Otemma zentral−0.92 m w.e.
Silvrettagletscher−0.89 m w.e.
Vadret dal Corvatsch S−0.88 m w.e.
Glacier du Sex Rouge−0.79 m w.e.
Griesgletscher−0.78 m w.e.
Ghiacciaio del Basòdino−0.69 m w.e.
Schwarzberggletscher zentral−0.64 m w.e.
St. Annafirn−0.63 m w.e.
E22-16−0.63 m w.e.
Pizolgletscher−0.61 m w.e.
Glacier de Tsanfleuron−0.60 m w.e.
Glacier de Corbassière−0.59 m w.e.
Chessjengletscher NW−0.52 m w.e.
Schwarzwasserfirn−0.49 m w.e.
Glatscher da Medel E−0.47 m w.e.
Allalingletscher−0.43 m w.e.
Findelgletscher−0.39 m w.e.
Adlergletscher−0.36 m w.e.
Glacier du Giétro−0.34 m w.e.
B51-41−0.32 m w.e.
Vadret dal Murtèl−0.31 m w.e.
Claridenfirn−0.29 m w.e.
Glacier de Tortin zentral−0.25 m w.e.
Plan Névé NE−0.21 m w.e.
Grosser Aletschgletscher−0.18 m w.e.
Hohlaubgletscher−0.16 m w.e.
Rhonegletscher−0.09 m w.e.
Oberaargletscher+0.04 m w.e.
Feegletscher+0.25 m w.e.
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