You've got me. Every single GCM based on anthropogenic global warming theory is trending too high in its predictions. The Faithful try to hide this by creating graphs with massive margins of error for the models and claiming that the observation line falling out the bottom still "proves" the most dire AGW predictions which would require that observation line to be punching out the top. They also cherry pick ground data and exclude far more accurate satellite data so they can nudge that line up a little higher, lest someone ask why the models aren't deemed to be falsified the moment it drops out the bottom.
Observation trumps theory. Observation always trumps theory. If you don't believe that then you're not a scientist regardless of your "specialty."
It's pretty clear at this point that alarmist attitudes over AGW were ill founded. The climate is not as sensitive to CO2 forcing as originally believed. Total forcing for a doubling of preindustrial CO2 levels will be at or below the bottom of the IPCC's predictions. There's very little to worry about in that scenario and the costs of trying to mitigate the warming is vastly higher than the cost of simply adapting to it.
And don't even get me started on the "scientists" who "specialize" in "climate studies" yet confuse weather for climate. All while failing to look back over even 30 years of weather observations. It doesn't matter WHAT today's weather does, it's proof positive of CLIMATE CHANGE. Even if it's no where near the extremes of past records.
AGW theory, aka "climate change", has become a religion. And you dare not question any claim or proclamation of the AGW faithful lest you be slapped over the head with SCIENCE!, EXPERTS!, and SPECIALTIES!