by Bob Walsh
A 490 acre iceberg broke off the Brunt Ice Shelf on Friday.
The largest known iceberg was a tad over 4,000 square miles and launched itself into the Antarctic Ocean back in 2000.
Every
year more than 10,000 icebergs break off, a process known as Calving.
Most of them are very small and and pose little or no hazard.
Because the ice shelf is already floating it will not create any rise in sea level, if you are the sort who worries about that.
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