On Aug 28, 12:51 pm, Roger Coppock wrote:
As Predicted, Global Warming Fuels More Tropical Rainfall
By Andrea Thompson, LiveScience Staff Writer
posted: 28 August 2007 11:37 am ET

Scientists had predicted that global warming ought to increase
rainfall in the tropics. Now NASA researchers say it has.
[Its a prediction Arrhenius made based on his climate model in 1896.
-- Roger ]

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http://www.sciencemag.org/cgi/conten...t/317/5835/233

"Originally published in Science Express on 31 May 2007
Science 13 July 2007:
Vol. 317. no. 5835, pp. 233 - 235
Reports
How Much More Rain Will Global Warming Bring?
Frank J. Wentz,* Lucrezia Ricciardulli, Kyle Hilburn, Carl Mears
Climate models and satellite observations both indicate that the total
amount of water in the atmosphere will increase at a rate of 7% per
kelvin of surface warming. However, the climate models predict that
global precipitation will increase at a much slower rate of 1 to 3%
per kelvin. A recent analysis of satellite observations does not
support this prediction of a muted response of precipitation to global
warming. Rather, the observations suggest that precipitation and total
atmospheric water have increased at about the same rate over the past
two decades"

- but as NOT predicted, rainfall has increased 2 to 7 times as much
as
the models- more rain implies more clouds- a negative feedback. As I
have said before, why get excited over a 1.1 K increase over a
century, especially
since most of the warming is in the winter and at night- A. McIntire