Climate history may explain empires' fall


	Climate history may explain empires' fall

Deepti

12-5-2008 6:56 AM

358 views

tags:

climate, history, byzantine, roman, empire

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/5a72e40d-51d3-4a9c-aff6-0026fcc44f49/F5382868-3D61-43F3-9216-05F60532DCC9/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.reuters.com/article/scienceNews/idUSTRE4B35ZO20081204" href="http://www.reuters.com/article/scienceNews/idUSTRE4B35ZO20081204" style="font-size: 11px;">www.reuters.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.reuters.com/article/scienceNews/idUSTRE4B35ZO20081204">An analysis of rings on a stalagmite from a cave near Jerusalem reveals a drier climate in the region at a time in history when the Roman and Byzantine empires were in decline, scientists reported</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.reuters.com/article/scienceNews/idUSTRE4B35ZO20081204">University of Wisconsin geologists analyzed the chemical composition of individual rings as small as one-hundredth of a millimeter across that formed the stalagmite growing up from the floor of the Soreq Cave near Jerusalem between 200 B.C. and 1100 A.D</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.reuters.com/article/scienceNews/idUSTRE4B35ZO20081204">Geologists John Valley and Ian Orland concluded the climate was drier in the eastern Mediterranean between 100 A.D. and 700 A.D., with steep drops in rainfall around 100 A.D. and 400 A.D. -- a period of waning Roman and Byzantine power in the region</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.reuters.com/article/scienceNews/idUSTRE4B35ZO20081204">The team is now applying the same geochemical technique to examine older samples from the cave from the time of the last glacial retreat roughly 19,000 years ago, to help understand how weather patterns respond to fast-warming temperatures</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/F5382868-3D61-43F3-9216-05F60532DCC9/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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