Wetlands constructed along waterways are the most cost-effective way to reduce nitrate and sediment loads in large streams and rivers, according to scientists at the University of California, Irvine; the University of Kansas; the University of Minnesota and other institutions. Rather than focusing on individual farms, the researchers suggest that conservation efforts should be implemented at the watershed scale. … "This work would not have been possible without the diverse expertise and perspective of hydrologists, ecologists, geomorphologists, biogeochemists, social scientists and environmental economists," said lead principal investigator Efi Foufoula-Georgiou, [Distinguished Professor, civil & environmental engineering], of the University of California, Irvine. Read More