“In a paper published in the journal Nature Geoscience on Monday, an international team of scientists reconstructed temperatures over the past 2000 years using proxy records such as tree-ring measurements, pollen sampling, coral reefs, ice cores and historical records.”
The warmists claim decimal points at both ends of the train. Claiming them from “paleodenritics” is just as silly as claiming them from GCMs.
Life, including plant life, is generally highly adaptable. Species with low adaptability tend to have short spans on the planet. It makes sense that all proxies like tree rings, pollen traces, and even ice cores represent the interplay of many factors and that temperatures are only one of them. Trying to read even the last digit left of the decimal as definitive is a poor idea when you’re talking about proxies like this; reading right of the decimal point is roughly equivalent to using a crystal ball. Without Windex.
It’s possible that it’s a little warmer now than 1400 years ago; on the other hand, most measures indicate that it was warmer around 700 years ago during the Medieval Warm Period.