Professor Dr. Jan Esper's group at the Institute of Geography at JGU used tree-ring density measurements from sub-fossil pine trees originating from Finnish Lapland to produce a reconstruction reaching back to 138 BC.READ MORE
In so doing, the researchers have been able for the first time to precisely demonstrate that the long-term trend over the past two millennia has been towards climatic cooling.
‘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.
Showing posts with label geography. Show all posts
Showing posts with label geography. Show all posts
Wednesday, July 11, 2012
Institute of Geography study: World has been cooling for 2,000 years
Labels:
geography,
global cooling,
global warming,
science,
trees
Wednesday, March 31, 2010
The Black community faces educational issues similar to other minority groups...
...and closing achievement gaps is a critical issue.
Uh, yeah...
July 9, 2008: Dallas county official: “Black hole” is racist!
Uh, yeah...
Noted PhD and Mensa Chapter President Rep. Hank Johnson asserted that his "biggest fear" is that the influx of people to the island would cause it to "tip over and capsize."No Way, He Doesn't Really Say That, Does He?
July 9, 2008: Dallas county official: “Black hole” is racist!
Wednesday, July 29, 2009
Just how smart is Obama?
Just how smart is the President? Famous presidential historian Michael Beschloss, a regular on PBS's Newshour show, says his IQ is "off the charts" and that he is "probably the smartest guy ever to become president," while admitting he doesn't know what his IQ is. I say: let's look at the evidence.
Labels:
American history,
books,
economics,
geography,
IQ,
Jack Cashill,
law,
Michael Beschloss,
Newshour,
Obama,
PBS,
President
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