Is this a good trend line?

[ScienceRocks]

Is this a good trend line?

http://www.drroyspencer.com/wp-content/uploads/UAH_LT_1979_thru_July_2013_v5.6.png

The attached I put a trend line of the temperature.

 

[flacaltenn]

Is this a good trend line?

http://www.drroyspencer.com/wp-content/uploads/UAH_LT_1979_thru_July_2013_v5.6.png

The attached I put a trend line of the temperature.

It's an "OK" eyeball estimate.. But why do that? There are calculated rates out there already.. Over the sat. era ---- approx 0.14degC/decade.. High estimates are possibly 0.18degC/dec if you insist on using the cooked GISS recipe...

That's almost the first order physics approx for CO2 ONLY warming plus an amount for accumulated solar warming..

For what that's worth.. So much is lost calculating just one number for the entire planet. That game is really for the AGW "project management team" and not for science..