Image:Grinnell Glacier Overhead.jpg

From Global Warming Art

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A side view of Grinnell Glacier, also indicating its retreat.

An overhead view of Grinnell Glacier in Glacier National Park with outlines indicating the change in its extent between 1850 and 1993. This glacier has retreated from a total extent of ~2.3 square kilometers circa 1850 to ~1.1 square kilometers in 1993, and is now distributed in two major and five minor segments. [1] Like other glaciers in Glacier National Park, it is predicted that Grinnell Glacier will disappear by 2030 under current projections for the rate and extent of global warming.^[1]

This image is a work of a United States Geological Survey employee, taken or made during the course of the person's official duties. As a work of the United States Government, the image is in the public domain. For more information, see the USGS copyright policy.

^ Hall, M. H. P. (1994). Predicting the impact of climate change on glacier and vegetation distribution in Glacier National Park to the Year 2100. Syracuse, NY: State University of New York, 192 pp. M.S. Thesis.