The nation's streams and rivers play a very important role in filtering out pollutants such as nitrogen and removing them from the ecosystem, researchers affiliated with the Long Term Ecological Research (LTER) Network and their collaborators have determined. Their conclusion stems from the Lotic Intersite Nitrogen eXperiment (LINX), a long term, NSF-funded study whose results were recently published in the scientific journal, Nature.
Read press release... (http://www.mbl.edu/news/press_releases/2008_pr_03_13.html)