modeling rivers (IMAGE) University of Massachusetts Amherst Caption \The researchers estimated carbon emissions across 22 million streams across the U.S. Blue areas emit lower amounts of CO2 while red areas emit more. Zooming into the area in the yellow box demonstrates the level of detail for calculating the carbon footprint for each stream, and how this footprint can change at different points along the same river. Credit Matthew Winnick Usage Restrictions To be used in covering the study "Toward Modeling Continental-Scale Inland Water Carbon Dioxide Emissions" License Original 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.