When you see an iceberg off Australia that's only 1,000 feet thick, does that mean the world is overheating?

[With photo]: Giant iceberg spotted off Australia - Telegraph

The ice chunk, measuring some 2,300 feet long with an estimated depth of more than 1,000 feet, caused a stir when it was sighted by experts based on Australia's remote Macquarie Island.

"I've never seen anything like it - we looked out to the horizon and just saw this huge floating island of ice," said fur seal biologist Dean Miller.