And despite your stupid chart below, the reality is that global temperatures have not increased for over 17 years.
The Medieval Warm Period was not a global phenomenon. Warmer conditions were concentrated in certain regions. Some regions were even colder than during the Little Ice Age. To claim the Medieval Warm Period was warmer than today is to narrowly focus on a few regions that showed unusual warmth. However, when we look at the broader picture, we see that the Medieval Warm Period was a regional phenomenon with other regions showing strong cooling. What is more, and as can be seen in Figure 4, globally, temperatures during the Medieval Period were less than today.
the ocean has been warming since the last ice age in cycles. CO2 follows the change in ocean temps. This data is also from the fascists at NOAA. (to use your term.) It makes sense that change in ocean temps leads change in co2. as oceans warm they release co2. as air warms it can hold more water vapor and co2. "The maximum positive correlation between CO2 and temperature is found for CO2 lagging 11â12 months in relation to global sea surface temperature, 9.5-10 months to global surface air temperature, and about 9 months to global lower troposphere temperature. The correlation between changes in ocean temperatures and atmospheric CO2 is high, but do not explain all observed changes." See: http://dx.doi.org/10.1016/j.gloplacha.2012.08.008