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"Surfer" wrote in message ...
On Tue, 12 Jan 2010 11:08:37 -0500, None4U wrote:

Last Post wrote

Cold in Florida is proof that the scientists lied and a new ice age is upon
us.

No. By helping trap heat, the enhanced greenhouse effect causes
greater warming of air near the earths surface but greater cooling of
air at higher altitudes.

A greater temperature difference between the two means greater
convection.

Greater convection means that polar air can be pushed further into
temperate regions in winter.
http://en.wikipedia.org/wiki/Atmosph...ion#Polar_cell

However while Florida is complaining of cold, southern Australia is
experiencing record heat.

Record Heat Across South Australia In First Half of the Month
17 November 2009
http://www.bom.gov.au/announcements/...thalfNov.shtml

Melbourne heatwave cancels trains, fire warning for two states
January 11, 2010
http://www.news.com.au/national/stat...-1225817926398

The severity of the heat waves is probably due to greater convection
allowing equatorial heat to be transferred further into temperate
regions in summer.

More on that idea here.
http://www.newscientist.com/article/...oundaries.html

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