That 14.8C degrees current global temperature again
A correspondent has updated me on the above issue. He points out that the 14.8C GAT referred to is also the Annual Average for 2016. 14.84C is shown at the NOAA Annual Summary here. They show .94 anomaly + 13.9 average, which is 14.84.
This compares with HIGHER temperatures reported for 1997 and 1998
NOAA say that their 1997 and 1998 averages were wrong and that they have subsequently been revised downwards. They say:
"Please note: the estimate for the baseline global temperature used in this study differed, and was warmer than, the baseline estimate (Jones et al., 1999) used currently. This report has been superseded by subsequent analyses. However, as with all climate monitoring reports, it is left online as it was written at the time."
That is mightily convenient. It becomes amazingly convenient when one notes that the original GAT for 1997 in the report was 16.92C -- ie over 2.0C warmer than 2016. Over the last 20 years they have lowered the 1998 temperature by 2.4C, and they currently say records are being broken by a measly tenth or hundredth of a degree.
Clearly, the average global temperature is at best an unreliable and wild guess of no worth for policy or any other purposes. On the original NOAA figures, the earth has COOLED by 2 degrees since 1997/1998 -- JR