To confirm what several other people posted,
the continental USA is warming faster than the rest of the globe.

According to the satellite Microwave Sounding Unit data
from Remote Sensing Systems, the globe from 82 degrees
North to 70 degrees South latitude warmed at 1.8 K per
century, while the continental USA warmed at 2.8K per
century. (RSS avoids a known problem MSU that occurs
when the microwave beam reflects off ice surfaces by
excluding the poles.)

Classic global warming theory from Arrhenius predicts
greater warming rates in dry areas like the American West
and heartland than more most regions.

These lower troposphere data come from the third and ninth
columns of:

http://www.remss.com/data/msu/monthl...cean_v03_1.txt

Though the continental USA is only about 1.5% of the globe's
area, there are more than enough data to support this statement.


=-=-=-=-=-=-=-=-=
Call:
lm(formula = LaN825S700 ~ YEARMON)

Residuals:
Min 1Q Median 3Q Max
-0.41589 -0.11629 -0.00948 0.10907 0.73922

Coefficients:
Estimate Std. Error t value Pr(|t|)
(Intercept) -35.1291 2.2028 -15.9 2e-16 ***
YEARMON 0.0177 0.0011 16.0 2e-16 ***
---
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 0.175 on 349 degrees of freedom
Multiple R-Squared: 0.423, Adjusted R-squared: 0.421
F-statistic: 255 on 1 and 349 DF, p-value: 2e-16

- - - -

fitted.model - lm(ContUSA ~ YEARMON)
summary(fitted.model)

Call:
lm(formula = ContUSA ~ YEARMON)

Residuals:
Min 1Q Median 3Q Max
-3.0723 -0.4895 0.0287 0.5624 2.2018

Coefficients:
Estimate Std. Error t value Pr(|t|)
(Intercept) -55.26373 10.64006 -5.19 3.5e-07 ***
YEARMON 0.02779 0.00534 5.21 3.3e-07 ***
---
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Residual standard error: 0.844 on 349 degrees of freedom
Multiple R-Squared: 0.0721, Adjusted R-squared: 0.0694
F-statistic: 27.1 on 1 and 349 DF, p-value: 3.29e-07