If you looked at this thermometer before it had fully adjusted to the outside temperature, you would see a cooling trend that has nothing to do with actual temperature changes outside. (realclimate.org)
A) The IPCC intended the projections as projections of actual temperature changes rather than projections of the expected influence of greenhouse gases, contrary to the explicity statement of the IPCC FAR; (skepticalscience.com)
Briffa's unusually declining temperature graph points to a serious conundrum that no one has been able to explain yet: Since the 1960s, the tree - ring data no longer reflect actual temperature changes. (abcnews.go.com)