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Glacier in 1920




                                                                                                  Glacier in 1970


                                Glacier in 1860
                                 e tongue was here























                                                                           Glacier in 2010




                                   and  Wangchuk  travelled  to  the  Grisons  to   Incidentally, this is not the only place where a
                                   build  the  first  Swiss  Ice  Stupa  together  with    eece  cover  is  used,  and  our  magazine  wrote
                                   Swiss  glaciologists  and  architects.  Today  the   about the  eece covering of the Glacier du Rhône
                                   biggest Ice Stupa in Europe is in Diavolezza;   (DIVA ID, no.2/2022). Whilst you may think that
                                   it is 14 meters high, and set to reach 20 metres   Grisons and Morteratsch are far away, the Glacier
                                   in favourable weather conditions. This project   du Rhône is much closer to us. It is the source
                                   is  made  possible  thanks  to  the  automatic   of the Rhône River, which  ows through Lake
                                   control  system  developed  by  the  Lucerne   Leman and our City of Geneva, before going on
                                   University of Applied Sciences and Arts and   to France. However, this  eece cover was used
                                   the initiative of the GlaciersAlive association,   to protect the ice cave in the glacier, and raised
                                   the  Gletschervision  GmbH,  the  Diavolezza   much criticism, showing again the importance
                                   cable  car,  Go  Vertical  and  BerninaGlaciers.   of  cooperation  between  research  institutions,
                                   The  installation  of  a  ground-independent   individuals,  and  organisations  if  the  aim  is  to
                                   snowmaking system could protect the glacier   reach tangible results to protect glaciers.
                                   as  well,  ensuring  drinking  water  for  this  big
                                   region.                                Measurements against the
                                                                          glacier retreating
                                   Fleece  cover  -   is  idea  is  not  new,  and   We  also  wanted  to  study  the  history  of  the
                                   perhaps  originated  from  observations  at  the   Morteratsch  Glacier  retreat,  and  for  that
                                   Karakoram Anomaly showing that the “black”,   we  needed  to  stay  “underneath’  the  glacier.
                                   covered  glaciers  are  melting  far  more  slowly.   Mortreratsch train station, with its accompanying
                                   Any  glacier  cover  must,  however,  be  durable,   nice hotel, is 3km from the glacier itself because
                                   resist harsh elements, and also white, to re ect   when it was built the glacier tongue reached this
                                   the  sun’s  rays.  Fleece  covers  are  one  of  the   area. Now it can only be seen, wild and beautiful,
                                   few  successfully  implemented  methods.  Solar   in the distance.
                                   radiation  is  re ected  by  the  white  material
                                   and  50-60%  of  the  snow  underneath  can  be   While hiking through the green landscape to the
                                   conserved.   e  innovative   eece  used  on  the   glacier, it was interesting and sad to see the marks
                                   Diavolezza is made of polypropylene, a durable   of the glacier’s retreat. Also, because of the scale
                                   thermoplastic  polymer  that  can  be  made  of   of the glacier, it sometimes felt further away as
                                   100% recycled material.                we get nearer to it, until suddenly we were nearly



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