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Fraser
2005-Apr-18, 02:37 PM
SUMMARY: Scientists have been watching a huge iceberg called B-15A, after it split away from Antarctica almost 5 years ago. After drifting along the coast of the continent, it finally smashed into the 70 km Drygalski ice tongue, breaking off a large chunk. The ice tongue is such a well known feature of Antarctica that it appears on many maps (they'll need to be revised). B-15A, on the other hand, appears totally unaffected by the collision, and will continue to grind away at the tongue.


View full article (http://www.universetoday.com/am/publish/b15_smashes_icetongue.html)

What do you think about this story? Post your comments below.

om@umr.edu
2005-Apr-18, 05:17 PM
Thanks for an interesting story. This will add fuel to the on-going debate over global warming.

With kind regards,

Oliver
http://www.umr.edu/~om

piersdad
2005-Apr-18, 07:57 PM
Gets pencil and eraser out

now where the map of antartica

wondered what was happening to that monster

lswinford
2005-Apr-18, 09:29 PM
Interesting irony of changing maps because an ice tongue was sheared shorter and the Dead Sea and similar like the Caspian have shrivelled up. Part of Antarctica is melting and part of it the snow is stacking up like crazy. So when are some enterprising souls going to start towing (or more likely pushing) those oversized bergs north to sell them for water to desert countries?

Back in the '60's (I'm pretty sure but can't remember any better than that) there were notions that maybe the US and USSR would run a dam across the narrows between Siberia and Alaska and pump Arctic water south. The idea was that the Gulf Stream would be diverted to melt the arctic ice cap and make enormous areas of US, Canadian, and Russian tundra into farm and forest lands. Of course it would also sort of freeze out the Europeans, but then Russian and the US might find some sinister satisfaction in that even today. :D

antoniseb
2005-Apr-18, 09:51 PM
Originally posted by lswinford@Apr 18 2005, 09:29 PM
So when are some enterprising souls going to start towing (or more likely pushing) those oversized bergs north to sell them for water to desert countries?
I had thought about trying to build a very big burm wall around a large part of the Sahara and putting Antarctic and Greenland Icebergs into giant baggies, and creating a giant lake in the desert, to both provide water for North African agriculture, and to keep sea level from going up twenty to fifty meters over the next few centuries.

There didn't seem to be any way to get enough energy to make these things happen. Plus there was this threat of something like the Johnstown Flood times 10000.

piersdad
2005-Apr-18, 11:05 PM
back in the 50 -60s there was speculation that large icebergs could be used as aircfaft carriers.
Also they could be rapidly toewed to a warmer climate and befor they were fully melted they were placed in a drydock and the water melted sent to the drier parts of the world.
however its cheaper to desalinate now