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Ice bergs melt when they absorb heat (thermal energy) from sea water and from the air. Direct sunlight is largely reflected off them.
The icebergs are melting because of heat trapped in our atmosphere by global warming is being pushed by global wind patterns to the poles. This warm weather causes the melting. When winter comes, the glaciers will expand. In a number of cases, the amount that melts in the summer is significantly more than the expansion in the winter.

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9y ago

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