61.   A vast ice shelf in Antarctica has shattered and collapsed into the sea, the US based National Snow and Ice Data Center warned Tuesday.

62.   Already glaciers are in retreat, a large part of the Antarctic ice shelf has broken away and tropical coral reefs appear to be dying because of global warming.

63.   And with continued warm summers, other ice shelves are on the brink of collapse, the NSIDC warned.

64.   Cracks have appeared in another section of a vast Antarctic ice shelf, the northern section of which collapsed two years ago, a leading geologist says.