Extreme streamflow in US, Canada (IMAGE) Dartmouth College Caption Blue boxes indicate change in high flow frequency during each season. High-flow seasons are not decreasing in any region in the U.S. and Canada. Red boxes indicate where low-flow events are increasing significantly. This is especially prevalent in the drought-prone Southwest and Southeast U.S. Credit Figure courtesy of Evan Dethier. Usage Restrictions Figure courtesy of Evan Dethier 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.