More MSM envirovoodoo B&G? This calving is nothing new and in fact is often caused by ice shelves growing, which is not caused by a rise in temps!
Glaciers have been receding and growing cyclically for hundreds of years. Recent glacier melting is a consequence of coming out of the very cool period of the Little Ice Age. Ice shelves have been breaking off for centuries. Scientists know of at least 33 periods of glaciers growing and then retreating. It’s normal. Besides, glacier's health is dependent as much on precipitation as on temperature.
Douglas MacAyeal, an NSF-funded researcher at the University of Chicago, who placed automated weather stations and tracking devices on B-15A, a enormous fragment of the larger iceberg, said that the satellite and other technologies are allowing Science for the first time in history to observe the calving of large icebergs like C-19 and B-15. The process, he noted, is part of a natural cycle in which ice shelves grow and then calve icebergs over geological time scales.