So from my perspective, the word «crude» applied to the models used in earlier IPCC Third assessment reports rather than to the latest generation of GCMs. (scholarsandrogues.com)
The so called «spaghetti» graphs used in figure 2 above are interesting, but their range of variability (excepting Moberg et al) remain almost as limited as their iconic predecessor the «Hockey stick» produced by Dr Michael Mann et al and from which the IPCC third assessment report graphic from 2001 was derived. (wattsupwiththat.com)
In 2001 the third assessment report (TAR) upgraded this by saying «There is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities». (sciencedaily.com)