[Robert A Cook PE]

You get a very, very different “result” from a sine wave: Even a second-order or third order curve evokes a very different result.

But a flat line? No. That’s NOT the way to fit this kind of data.

A “simple sloped line? Like they tried here?
Again: It ONLY fits their scenario of a constantly (or accelerating!) temp increase. The AGW extremists CAN’T afford (literally!) to allow any other answer to be seen.

[RightWhale]

Sorry, we don’t do parabolas or other conics here. We were issued only these straightedges. Least squares or forget it.