Oh dear, now we have Does The 2007 IPCC Statement For Policymakers Accurately Present The Observations Of Recent Global Temperature Trends? [2014 update: dead URL. Here’s a wayback machine link] on the grounds of a lack of trend over the last 5 years (actually “statistically significant”, though its not clear how the stat sig was calculated – probably once you are emeritus you can do them in your head).
But the first commenter makes the obvious point very well (and has actually gone to the trouble of doing the work): I did the exercise of looking at all overlapping 5-year periods in the figure you reference, and there’s a statistically significant trend in only about 7 out of 24 5-year periods, despite the clear overall long-term trend. Indeed: if you pick a short time period, then natural variability makes it quite likely you’ll see no sig trend *despite* the overall sig trend.
RP has no answer to this, other than to agree, which makes all that post pointless.