Thermal Limits (image) University of Washington Share Print E-Mail Caption This figure shows the risk that freshwater fish (top) and marine fish (bottom) could exceed their thermal limits by the year 2070. Blue indicates a low risk and red shows a high risk. Credit University of Washington Usage Restrictions Photo credit required. Share Print E-Mail 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.