Glacier Comparisons - The past and today

With my travels along the glaciers through the Alps, Norway, and Iceland
I am documenting the effect of global warming and climate change. 
Glaciers are the perfect climate indicator. 
While around 1850 the glaciers in the alps have reached their largested extend within the last centuries, they are constantly retreating since this time. By comparing old images from the
past and today, it is obvious, what is going on. In case you would like to use any of these comparisons for your purposes please feel free to contact me.

The Alps

Gurgler glacier, Austria

Gurgler glacier, Austria

Pers- and Morteratsch glacier, Switzerland
(Historical image: Albert Steiner, Bovalhütte mit Pers-Gletscher, ca. 1930; 
(c) 2023 Bruno Bischofberger, Meilen)

Tschierva glacier, Switzerland

Schwarzenstein glacier, Austria

Stein glacier, Switzerland

Großglockner & Pasterze glacier, Austria

Schnee glacier, Zugspitze, Germany

Rhone glacier, Switzerland

Aletsch glacier, Switzerland

Aletsch Middle glacier, Switzerland

Rhone glacier, Switzerland

Hornkees, Austria

Gorner glacier, Switzerland

Norway

Lodalsbreen & Stigaholtsbreen, Norway

Boyabreen, Norway

Kjendalsbreen, Norway

Buarbreen, Norway

Nigardsbreen, Norway

Iceland

Kerlingarfjöll, Iceland

Skaftafellsjökull & Skeidararjökull, Iceland