Another piece of evidence supporting that climate change is more complex than just global warming. "Since the 1990's, it has been documented to be losing approximately 100 billion tonnes of ice per year." And most surprising, it's not only increased temperature that is speeding up the glaciers melting, but the increased rain fall is resulting in increased melt. Gradual warming causes gradual glacial melt, and sudden increases in rainfall can cause glacier melt to spread and speed up. "...during heavy rainfall, higher water pressure is required to force drainage along the base of the ice..." As a result of glacial melt from Greenland, global sea levels rose about 0.14 to 0.28 milimeters per year between 1993 and 2003.
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