sunshine hours

August 9, 2018

It was WARMER in Roman and Medieval times

Filed under: Tree Rings — sunshinehours1 @ 9:35 AM
Tags: , ,

Update: The article and paper are from 2012.

Global cooling: It is the first time that researchers have been able to accurately measure trends in global temperature over the last two millennia

A study suggests the Britain of 2,000 years ago experienced a lengthy period of hotter summers than today.

German researchers used data from tree rings – a key indicator of past climate – to claim the world has been on a ‘long-term cooling trend’ for two millennia until the global warming of the twentieth century.

This cooling was punctuated by a couple of warm spells.

These are the Medieval Warm Period, which is well known, but also a period during the toga-wearing Roman times when temperatures were apparently 1 deg C warmer than now.

They say the very warm period during the years 21 to 50AD has been underestimated by climate scientists.

Lead author Professor Dr Jan Esper of Johannes Gutenberg University in Mainz said: ‘We found that previous estimates of historical temperatures during the Roman era and the Middle Ages were too low.

http://www.dailymail.co.uk/sciencetech/article-2171973/Tree-ring-study-proves-climate-WARMER-Roman-Medieval-times-modern-industrial-age.html

https://www.nature.com/articles/nclimate1589

 

 

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5 Comments »

  1. Reblogged this on Climate Collections.

    Comment by Hifast — August 9, 2018 @ 2:12 PM | Reply

  2. Any link to the study? The abstract? What date was it published? Thanks.

    Comment by garyh845 — August 9, 2018 @ 4:57 PM | Reply

  3. Thank you!

    Comment by garyh845 — August 10, 2018 @ 10:57 AM | Reply

  4. Reblogged this on Sierra Foothill Commentary and commented:
    If it was warmer in the past, what makes the current warming unusual? Past warming was not blamed on human CO2 emissions, why should they be blamed for the current warming? Interested in hearing your thoughts?

    Comment by Russ Steele — August 13, 2018 @ 5:48 AM | Reply


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