==> Speeding up cave cleanup studied. FromWorld Caving News http://www.zenas.gr/WCN => 11 Sep. 2006.It normally takes 20 to 30 years for spills to be cleaned up naturally in an underground water system, but a group of student researchers from Tennessee State University hopes to apply a technique that can speed up the process.Source: http://www.knoxnews.com/kns/national/article/0,1406,KNS_350_4983400,00.html http://www.zenas.gr/site/home/eng_detail.asp?iData=4942 --~--~---------~--~----~------------~-------~--~----~ SpeleoUnion http://groups.google.ru/group/SpeleoUnion -~----------~----~----~----~------~----~------~--~---
