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    Our Icelandic guide, Hanna Pètursdóttir, admiring and ice cave we hiked to inside the Svínafellsjökull Glacier. Hanna has observed this ice cave for several seasons and she noted that it is rapidly expanding due to the effects of global warming. Since 2000, Icelandic glaciers have lost 12 percent of their size, in less than 15 years.
    WHAT MAKES THIS PHOTO GREAT?
    Composition 9
    Lighting 8
    Creativity 3
    Story 6

    I like how this image plays tricks with my eyes. Is it a long tunnel with a light at the end? Are we looking down into an icy crater with someone stuck at the bottom? It makes me feel anxious as if the cave walls are closing in on me. Is time running out on us to change our ways?

    Monica C. Corcoran
    Former Director, Your Shot
    Photo Details
    Date Taken: Sep 29, 2016
    Date Uploaded: Oct 11, 2016
    Camera: SONY ILCE-7RM2
    Focal Length: 16 mm
    Shutter Speed: 1/60 sec
    Aperture: f/6.3
    ISO: 640
    Copyright: © Tom Schifanella
    Categories: Culture, Animals, Nature
    Assignments: Follow Me, Climate Change: In Focus
    Contests: 2016 National Geographic Nature Photographer of the Year