Tree-rings prove climate was WARMER in Roman and Medieval times than it is now – and world has been cooling for 2,000 years

Jul11
by admin on July 11, 2012 at 7:29 am
Posted In: Global Warming Hoax, Science
  • Tree ring study gives first accurate climate reading back to 138BC
  • World has been slowly cooling for 2,000 years
  • World was warmer in Roman and Medieval times than it is now
  • Study of semi-fossilised trees in Finland

Rings in fossilised pine trees have proven that the world was much warmer than previously thought – with measurements dating back to 138BC

Rings in fossilised pine trees have proven that the world was much warmer than previously thought – and the earth has been slowly COOLING for 2,000 years.

Measurements stretching back to 138BC prove that the Earth is slowly cooling due to change

‘We found that previous estimates of historical temperatures during the Roman era and the Middle Ages were too low,’ says Esper. ‘Such findings are also significant with regard to climate policy, as they will influence the way today’s climate changes are seen in context of historical warm periods.’

The annual growth rings in trees are the most important witnesses over the past 1,000 to 2,000 years as they indicate how warm and cool past climate conditions were.

 Researchers from Germany, Finland, Scotland, and Switzerland examined tree-ring density profiles in trees from Finnish Lapland. In this cold environment, trees often collapse into one of the numerous lakes, where they remain well preserved for thousands of years.
Global cooling: It is the first time that researchers have been able to accurately measure trends in global temperature over the last two millenniaGlobal cooling: It is the first time that researchers have been able to accurately measure trends in global temperature over the last two millennia

 

The annual growth rings in trees are the most important witnesses over the past 1,000 to 2,000 years as they indicate how warm and cool past climate conditions wereThe annual growth rings in trees are the most important witnesses over the past 1,000 to 2,000 years as they indicate how warm and cool past climate conditions were

 

The density measurements correlate closely with the summer temperatures in this area on the edge of the Nordic taiga; the researchers were thus able to create a temperature reconstruction of unprecedented quality.

The reconstruction provides a high-resolution representation of temperature patterns in the Roman and Medieval Warm periods, but also shows the cold phases that occurred during the Migration Period and the later Little Ice Age.
In addition to the cold and warm phases, the new climate curve also exhibits a phenomenon that was not expected in this form.

For the first time, researchers have now been able to use the data derived from tree-rings to precisely calculate a much longer-term cooling trend that has been playing out over the past 2,000 years.  Read more:   http://goo.gl/DSlIg

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