Roughly equal to Medieval Warm Period in terms of global mean temperature. Areas the size of Europe (~3% of the total area) might show significant differences b

Roughly equal to Medieval Warm Period in terms of global mean temperature. Areas the size of Europe (~3% of the total area) might show significant differences between then and now in average yearly temperature, with the global average being equal. The most important comparison to compare Earth's current temperature to is called the 'Holocene Optimium' which is the current high point (10kya) in the glacial/inter-glacial cycle. It's thought to have been 0.5C-2.0C warmer than today.