J. Climate, 22, 4029 -- 4049 . doi: 10.1175/2009JCLI2816.1). He was kind enough to supply me with a temperature reconstruction for the GRIP drilling site -- 28 km from GISP2. This is what the annual average temperature record looks like (click for bigger version): I've added lines showing the average temperatures for the 1850s (blue) and the last 10 years (red), and the difference between those is a warming of 1.44C. I've also added the two most recent GISP2 temperature data points (for 1847 and 1855, red crosses). It's obvious that the GRIP site is warmer than GISP2 (at Summit Camp). The difference is estimated to be 0.9C on the annual average (Box, pers comm). Let's have ago at reconstructing Easterbrook's Fig 5, covering the last 10,000 years of GISP2 data. It looks like this (click for bigger version): The GISP2 series -- the red line -- appears to be identical to Easterbrook's version. The bottom black line shows his 1855 "present", and it intersects the red line in the same places as his chart. I've added a grey line based on the +1.44C quantum calculated from the GRIP temperature data, and two blue crosses, which show the GISP2 site temperatures inferred from adjusted GRIP data for 1855 and 2009. Two things are immediately apparent. If we make allowance for local warming over the last 155 years, Easterbrook's claim that "most of the past 10,000 [years] have been warmer than the present" is not true for central Greenland, let alone