In recent months there has been a lot of attention devoted to the failure of the GCMs to predict the pause/standstill/hiatus in temperature rise seen for the last decade or more. Mike Kelly points me to this recent paper in the open access journal Climate. It's by the prominent sceptic Syun-Ichi Akasofu, whose naive model of global temperature change gets attention every few years.
The model essentially superimposes a multidecadal oscillation on an upward linear trend representing the recovery from the little ice age, and it gets attention because it performs so well. In the latest paper, the model is compared to observations for the period to 2012.