Changes in upstream rivers (IMAGE) University of Massachusetts Amherst Caption Of nearly 1.5 million of the smallest, upstream rivers on earth, 17% of rivers saw a 1-5% increase in streamflow (blue) while 9.9% saw a decrease (red) over 35 years. Credit Dongmei Feng, Colin Gleason Usage Restrictions To be used in coverage of the study "More flow upstream and less flow downstream: The changing form and function of global rivers" 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.