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it's not the ocean that's warming up the glacier, causing it to melt. The melting is due to the rising air temperatures.

No one in this discussion seems to be grasping the fact that the Earth's oceans and atmosphere are inexorably linked. As goes one, so goes the other. The oceans are a buffer in the climate cycle, and even a small change in overall ocean temperature indicates something is wrong with our climate.
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Tony Fabris