In message , Surfer
writes
On Mon, 29 Nov 2010 17:20:20 +1100, "digoa n bo" wrote:


...

Well, in the UK the following may apply.

http://environment.about.com/od/glob...ulf_stream.htm

Start extract

By taking warm water from the equatorial Pacific Ocean and carrying it
into the colder North Atlantic, the Gulf Stream warms up the eastern
United States and northwestern Europe by about five degrees Celsius
(roughly nine degrees Fahrenheit), making those regions much more
hospitable than they would be otherwise.

Melting Glaciers Could Disrupt Warm Gulf Stream Currents

Among the greatest fears scientists have about global warming is that
it will cause the massive ice fields of Greenland and other locales at
the northern end of the Gulf Stream to melt rapidly, sending surges of
cold water into the ocean system and interrupting the flow of the
Ocean Conveyor Belt. One doomsday scenario is that such an event would
stop or disrupt the whole Ocean Conveyor Belt system, plunging Western
Europe into a new ice age without the benefit of the warmth delivered
by the Gulf Stream.

End extract

Nope, it's not that. Well not yet anyway. Scientists are watching the
gulf stream closely and I haven't heard of any recent changes.

The UK's weather is determined by whether the jet stream is to the North
or South of the country. It blocks the cold weather from the Arctic so
if it's to the North the weather is warmer than if it is to the South.
It tends to get jammed so once it's in position it stays there for some
time.

http://planetearth.nerc.ac.uk/featur...ry.aspx?id=146
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