Monster ice chunk collapses off Antarctic ice shelf
A chunk of ice at the edge of the Wilkins ice shelf in Antarctica has suddenly collapsed, putting even more ice at risk, according to scientists. The ice is 160 square miles in area, about seven times the size of Manhattan, and had been there for at least 1,500 years. The picture to the right, from the National Snow and Ice Data Center, shows the disintegration as it was happening.British Antarctic Survey scientist David Vaughn said, "This is the result of global warming." The rest of the Wilkins ice shelf, which is about the size of Connecticut is holding on by a thin piece of ice. Scientists aren't concerned that the piece of ice that just fell, as large as it sounds, could cause a rise in sea levels; the greater danger is that the increase of the number such occurrences indicate a "tipping point" in the climate.
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