This is a before and after painting of a glacier melting. As global warming progresses through the years, glaciers that could be used to cool the planet (ice albedo) are now melting at an accelerated pace. The ice albedo feedback is essential to our climate and it's balance. This and the other feedbacks are what influence the climate and its variability. As the ice melts, there is less of a chance for the planet to cool itself down. If the melting rate slows down, there is a chance the the ice albedo effect can catch up and cool down the planet.
Source: http://www.treehugger.com/culture/diane-burko-puts-climate-change-on-a-canvas-with-politics-of-snow.html
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