None at all, or very little. Much of the Arctic naturally melts away in the summer, more in recent years due to atmospheric warming. Soon we are likely to see an Arctic with ice-free summers, that would refreeze in the winter months, then melt again. This is why the Arctic melting won’t raise sea level, it freezes out of the ocean then melts, it’s in a perfect balance. A bigger concern is if the glacier on top of Greenland melted. If Greenland melted the world’s oceans would raise by about 20ft.
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