Thursday, November 12, 2009

Iceberg Spotted Off Of... Australia?

It is said that 90% of icebergs are located under water. These icebergs float around on either poles of the world. These icebergs can be extremely large. A "small" iceberg was spotted off of the southern coast of Australia. It is very rare for an iceberg to be spotted this far north. The iceberg is 50 meters high, and 500 meters long, above water. Scientists believe that this iceberg broke off of the Antartica's Ross Ice Shelf, in between 2000, and 2002. It was spotted off the Northern coast of Macquarie Island about 1500 km north southeast of Tasmania. Several icebergs have been moving north into warmer water in the past couple years, but none this large, and that have lasted this long. Scientists believe that the iceberg will break up and melt as it moves north. However, it could cause danger for oncoming ships. In 2000, several large icebergs broke off of Antartica's Ross Ice Shelf and the Ronne Ice Shelf. The first one was 37 km wide, and 300 km long. Icebergs are formed when ice shelfs develop. Snow falls on the ice, forms more layers of ice. Pieces of ice around the side sometimes break off.

People often think that icebergs are far away, to the north and south, and they are. But, they have the ability to travel towards the center of the Earth if they get caught in a flow of water. It is unreal that one has almost made its way up to Australia. Some people may think that this is caused by Global Warming, but I think that this is a normal occurrence.

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