What changes have occurred in the Glacier National Park, Montana?
by Television Trust for the Environment
on 01-01-1970

Length of this clip 00:01:12
Dr Dan Fagre has been using the park to study glaciers. Across the globe at extreme latitudes and elevations there has been a consistent and measurable amount of ice melt and glacial retreat in recent years. It has been estimated that half the worldˆ‚s glaciers have already been lost?

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