http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- A giant African lake basin is providing information about possible migration routes and hunting practices of early humans in the Middle and Late Stone Age periods, between 150,000 and 10,000 years ago. http://www.physorg.com/news171790409.html Other Sciences Thu, 10 Sep 2009 08:33:53 EST news171790409 Nutrients transported from catchments are one of the most important sources for lake eutrophication. The Honghu Lake Basin, located at the middle reaches of the Yangtze River, was chosen as the study area, the numerical simulations were used to assess the relative roles of natural, climate-induced changes versus human-related activities in changes of the nutrient transportation. The simulation results showed that the effect from human activities increased rapidly, and had become a dominant factor. http://www.physorg.com/news138435775.html Space & Earth Wed, 20 Aug 2008 07:22:55 EST news138435775