Receding Glaciers Provide Clues for Global Warming

Sometimes observing events that are taking place over several decades at various locations on the Earth helps us understand the true significance of what is taking place around the world due to global warming. Such is the case with a series of photographs shown at the doublexpposure web site that demonstrate the occurrence of receding glaciers located around the world. Comparative photos include: the Matterhorn glacier in Switzerland showing 1960 and 2006; the Blackstone glacier pictures taken in 1937 and 2007; the Heney glacier in Alaska shows the difference between 1937 and 2005; the Valdez glacier in Alaska photos from 1938 to 2007; the 20 Mile Glacier of Alaska with pictures taken in 1938 and 2007; the Alaskan Hugh Miller glacier shows the differences between 1940 and 2005; and the Tebenkof glacier, also found in Alaska shows the differences in photos from 1937 and 2007. All of the photos show that each glacier has lost portions of their snow and ice shields. The pictures of each particular glacier when studied in isolation from the other glaciers does not provide sufficient proof that global warming is occurring because individual glaciers have been known to expand and recede over time at various locations on the Earth. But the case for global warming gains greater credibility as a demonstrable fact of natural processes caused by a world-wide rise in temperatures over time when each of the glaciers are studied collectively; respective of their various locations around the Earth and with each glacier exhibiting a loss of glacial snow and ice coverage; then the argument in support of global warming exhibits greater viability as an observable and simultaneous process.