Climate change is causing significant mass loss of glaciers in high
mountains worldwide. Although glacier systems show a great amount of
inherent complexity and variation, there are clear overall trends
indicating global glacier recession, which is likely to accelerate in
coming decades. Large gaps remain in our understanding and ability to
model accurately the key processes and cause-effect relationships
driving glacier response to climate change. In addition, a lot of data
on glacier mass changes are not available to the public due to national
interests concerning water supply.