Last summer Europe experienced its hottest for over 500 years. Although that is not exactly what is supposed to happen there (apparently melting ice from the north pole will result in Europe freezing over)..
As for it certainly not happening next year (you gas guzzling, SUV driving, texas cowboy :P), "experts" say that all depends on how the fragile "Great Conveyor Belt" handles the melting polar caps. Alternet had a great article about it
HERE