|"was warmer"||Globally averaged temperature now is higher than global temperature in medieval times.|
UNSkeptical UNScience -SS's explanation:
evidence suggests that the may have been warmer than today in many parts of the globe such as in the North Atlantic. This warming thereby allowed Vikings to travel further north than had been previously possible because of reductions in and land ice in the Arctic. However, evidence also suggests that some places were very much cooler than today including the tropical pacific.
Medieval Warm Period (MWP) WAS warmer - and was in BOTH hemispheres.It was certainly warm hence the name.
Was it warmer than today? Depends on who you talk to and when.
The IPCC thought so in 1990, see Figure 7.1.
The IPCC also thought so in 2007, Figure 9.10.
There are also plenty of peer reviewed papers which say not only was the MWP warmer than today but global; see here, here, here. The thing about the alarmists is the MWP, like all their evidence, is subject to suspect revision as the Huang et al controversy shows.
References: Datsenko et al, Rosenthal et al, CO2Science MWP Project