AGW is a scam wrote:
But Roger the Earth'sTemperature isn't rising exponentially
over the period is it?

Yes, the Earth's mean surface temperature shows
signs of rising exponentially. Compare the two
sums of residuals below. Both linear and
exponential are 2 degree of freedom curve fits.
Each has two terms that must be determined
by the curve fit, a constant term and one other
term. The exponential fit has slightly less total
residuals. This means that the exponential curve
fits the temperature data slightly better than a
straight line.


TEMP = 13.661798 + (0.004962 * (YEAR-1879))
[ . . . ]
The sum of the residuals is 11.920386

Exponential least squares fit:
TEMP = 13.665012 * e^(.0003535 * (YEAR-1879))
The sum of the residuals is 11.880982


The above data are from last years, 2005, yearly report
on NASA GISS's "GLOBAL Land-Ocean Temperature
Index" data file. The data file is found at:
http://data.giss.nasa.gov/gistemp/ta...LB.Ts+dSST.txt

I will post my new report this year, as soon as NASA
posts the data.