Glacier Before and After

This was the Muir Glacier in Alaska in 1882. And here it is side-by-side with a photo from the exact same spot, taken by Bruce F. Molnia in August, 2005:

And in this next one, the "before" was taken in August 1941 by Ulysses William O. Field; and the "after" again by Bruce Molnia in 2004:

(All photos courtesy of The Glacier Photograph Collection, National Snow and Ice Data Center/World Data Center for Glaciology.)