But let us not forget (just look back over the past 1300 years):
In summary -
What the record of temperature, icehouses, and transgressions really doesn't match up with is the history of carbon dioxide concentration in the atmosphere. Veizer and Shaviv cite three different studies on CO2 levels.
The studies do not agree very well, but they do agree on two things: (1) the rise and fall of CO2 is unrelated to the rise and fall of temperature, and (2) the concentration of CO2 right now is at a historic low.
