GISS Tweaks the Short-Term Global Temperature Trend Upwards

Bob Tisdale - Climate Observations

GISS released its August 2014 global surface temperature data today. As I was preparing the graphs for the August 2014 surface and lower troposphere temperature update, I noticed a sizeable jump in the short-term trend in the GISS data. (I’ll try to post the full update this evening.)  The August GISS LOTI value is higher than July, but it should not have had that much of an effect on the trend for the period of January 1998 to present. Not too surprisingly, much of the increase in trend was caused by adjustments to data from 2000 to 2013.

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