Roaring Fork River, Colo. (IMAGE) University of Colorado at Boulder Caption A new CU-Boulder study shows that ratios of nitrogen and carbon in soils, rivers and oceans are closely linked, a finding with potential implications for mitigating pollution and health problems. Credit Casey A. Cass, University of Colorado Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.