Saturday, 14 December 2019

The Trift glacier in Switzerland in 2015. Over the past decade or so scientists and photographers keep returning to the worlds glaciers, watching them shrink with each visit. Now they want other people to see what haunts them in a series of before and after photos. (Matthew Kennedy/Earth Vision Institute via AP)

The Mendenhall glacier outside of Juneau, Alaska in 2007. Over the past decade or so scientists and photographers keep returning to the worlds glaciers, watching them shrink with each visit. Now they want other people to see what haunts them in a series of before and after photos. (James Balog/Extreme Ice Survey via AP)

The Solheimajokull glacier in 2015. Scientists primarily blame man-made global warming from the burning of coal, oil and natural gas. (James Balog/Extreme Ice Survey via AP)

The Solheimajokull glacier in 2007. In the Geological Society of America's GSA Today journal , a group of ice researchers and a photographer-filmmaker published pictures showing how much five of the world's glaciers have thinned. (James Balog/Extreme Ice Survey via AP)

The Trift glacier in Switzerland in 2006. Under natural conditions, glaciers at times melt and retreat while others grow and advance. (James Balog/Extreme Ice Survey via AP)

The Stein glacier in Switzerland in 2006. Over the past decade or so scientists and photographers keep returning to the worlds glaciers, watching them shrink with each visit. Now they want other people to see what haunts them in a series of before and after photos. (James Balog/Extreme Ice Survey via AP)