Global warming is slow but steady, icebergs of this size may become more frequent, our planets cooling system is under stress.

World's biggest iceberg heads for disasterIceberg A68a has been on a slow journey toward cataclysm in South Georgia Island, in the southern Atlanticgraphics.reuters.com

Looks like it may miss South Georgia and is starting to break up.

Giant Antarctic iceberg A68a is not done yetIt might have suffered a big break-up this week but the iceberg is still carrying substantial bulk.www.bbc.com