The top photo shows Pederson Glacier on the Kenai Peninsula of southeastern Alaska in 1917. The bottom photo, taken from the same vantage point, shows what was left of the glacier in 2005. Around the globe, total glacial mass has declined sharply, adding to sea level rise.
Image Credit: Top: Louis H. Pedersen, 1917. Bottom: Bruce F. Molina, 2005. Public domain.