The above pics are the Matterhorn, 1960 and 2006. The website DoubleExposure explains:
Global warming is affecting our planet in countless ways, not in some remote future, but today. DOUBLEXPOSURE documents one aspect of the warming climate through fine-art photography that brings the viewer into panoramas of glaciers once grand but now receding. The compelling comparisons put into stark view the fact of melting glaciers.
– from climateprogress. 29 Dec 2008