Status of prediction: According to NASA, global temperature has increased by about 0.7 degrees Fahrenheit since 1989. And U.S. temperature has increased even less over the same period.

The group that did the study, Atmospheric and Environmental Research Inc., said it could not comment in time for this story due to the holidays.

But Oppenheimer said that the difference between an increase of nearly one degree and an increase of two degrees was “definitely within the margin of error… I would think the scientists themselves would be happy with that prediction.”

Many scientists, especially in the 1970s, made an error in the other direction by predicting global freezing:

‘Global Warming: Causes, Predictions and Ways to Reduce the Impact
25th October 2007
Scientists are now 90% certain that we are experiencing climate change associated with global warming – and have been for several decades. There is now no serious scientific doubt that man-made climate change is a reality. Over ten years ago predictions were made that we in the UK were likely to experience warmer, drier winters and wetter summers along with more “extreme events” such as heatwaves and torrential rain.
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So maybe he’s seen the “sun” light. in 2010. I didn’t know he had made that prediction in 2007.

An interesting development.

That was after applying a 15 year moving average to the anomaly resulting from subtraction of the 7SS from the general warming trend (starting at 1850), so a bit misleading here.

Once you plot that anomaly (data at “December 20, 2010″), the picture becomes crystal clear. Makes NZCSET v NIWA more interesting too.

I’ve just finished a “de-trending” exercise on the 7SS NZTR (See NZ ETS: Analytic Negligence” and “December 20, 2010″) where I managed to establish the general global warming trend since 1850 (y = 0.5x + 13.6 i.e.the “normal” climate). Approx 38% of the normal rise is attributable to solar variability and 42% to residual non-solar climatological causes. Once that rise is subtracted from the 7SS, there’s only 0.1 C warming from 1963-2009 and the local NZ warming rate per century is only 0.22 C (UHI?).

I’ve also just finished reading “New Little Ice Age Instead of Global Warming?” by Dr. Theodor Landscheidt that contrary to what the title suggests, clearly shows how the climate varies above (global warming) and below ( Maunder, Dalton Minimum) a baseline but what is the baseline?

I’m now convinced that the practice of creating a moving 30 year flat average baseline (normal climate) from which to calculate temperature anomalies is of no value to describe climate and that “normal” is the normal global warming trend – whatever that is.

Remember too, that it was Mike Lockwood along with Harrison, Woollings and Solanki that came out last year with a possible explanation last year when the NH was snowed under.

See “Are cold winters in Europe associated with low solar activity?”

http://www.mps.mpg.de/dokumente/publikationen/solanki/j293.pdf

These guys are solar experts not warmists (I didn’t watch the vid BTW, so may be talking rubbish).

http://www.dailymail.co.uk/news/article-1342515/UK-snow-big-freeze-weather-means-winter-set-coldest-300-YEARS.html

http://www.bishop-hill.net/blog/2010/12/30/a-hundred-years-of-freezing.html

Nice work if you can get it.

Bets on for next winter?