Original sentence: According to the IPCC, the majority of climatologists agree that important climate processes are incorrectly accounted for by the climate models but don't think that better models would change the conclusion.Critics point out that there are unspecified flaws in the models and unspecified external factors not taken into consideration that could change the conclusion above.Skeptics also argue that if larger solar coupling exists than can be accounted for by direct insolation, models that don't account for this effect's role in past warming will attribute too much of that warming to greenhouse gases and will inevitably be biased to predict greater warming from future greenhouse gas increases.Some critics say that the climate simulations are unable to fit the water vapor feedback or handle clouds.Some indirect solar effects may be very important and are not accounted for by the models (Source: The Skeptical Environmentalist)