8,200-year-old climate change studiedRetreating glaciers opened a route for two ancient meltwater lakes, known as Agassiz and Ojibway, to suddenly and catastrophically drain from the middle of the North American continent. At approximately the same time, climate records show the Earth experienced its last abrupt climate shift -- a drop of average air temperature by several degrees. Scientists believe the massive freshwater pulse interfered with the ocean's overturning circulation, which distributes heat around the globe.
Mar 1, 2006, 3:02 GMT
Monsters and Critics
UPI
Eighteen Hundred And Froze To Death (The Infamous 'Year Without Summer')
Island Net.com | 4-7-2004 | Keith C. Heidon,PhD,ACM
Posted on 03/12/2005 11:10:49 PM EST by blam
http://www.freerepublic.com/focus/f-news/1361752/posts
1816 - The Year without a Summer (For Libs who think humans effect climate)
dandantheweatherman.com
Posted on 02/24/2006 8:12:19 PM EST by new yorker 77
http://www.freerepublic.com/focus/f-chat/1585159/posts
We aren't changing climate (N.C. Sen. Robert Pittenger gets it)
The Charlotte Observer | Sunday, February 5, 2006 | Senator Robert Pittenger
Posted on 02/07/2006 11:58:03 AM EST by DaveLoneRanger
http://www.freerepublic.com/focus/f-news/1573587/posts
Early Americans faced late Pliestocene climate change
Eureka Alert! | Feb. 19, 2006 | no author
Posted on 02/26/2006 6:50:38 PM EST by redpoll
http://www.freerepublic.com/focus/f-news/1586039/posts
Please FREEPMAIL me if you want on or off the
"Gods, Graves, Glyphs" PING list or GGG weekly digest
-- Archaeology/Anthropology/Ancient Cultures/Artifacts/Antiquities, etc.
Gods, Graves, Glyphs (alpha order)
That link's URL in null. Was that the intention?
My understanding is that the Lake Agassiz surge resulted in the Younger Dryas, 12,900 – 11,500 before the present (or 9900-8500 BC). I think the glacial lake Ojibway formed later, and Lake Agassiz filled up a little bit again, and then both resurged around the 8200 years ago but this didn't lead to as drastic nor as long of a drop in temperatures as the Younger Dryas.
So, the last glaciation reached its peak 20,000 years ago, and the world got lots warmer (and even wetter in some places (like the Sahara and the Middle East) but then when Lake Agassiz (a huge lake, 4 times larger than all the Great Lakes, filled with melted glacier water) burst all that fresh water spilled into the North Atlantic 12,000 years ago--well things got real cold and dry again in a hurry.
See what you and Blam have taught me after all these years on the GGG ping list?!
Bookmarked
Man changed climate for 8,000 years?
CNN/Associated Press | Wednesday, December 10, 2003
Posted on 12/10/2003 2:36:58 PM EST by anymouse
Edited on 04/29/2004 5:03:33 AM EDT by Jim Robinson. [history]
http://www.freerepublic.com/focus/f-news/1037828/posts
