Lake Okeechobee (IMAGE) Carnegie Institution for Science Caption Ho, Michalak, and Pahlevan's study of algal blooms in lakes over a 30-year period found that Florida's Lake Okeechobee deteriorated. Toxic algal blooms resulted in states of emergency being declared in Florida in 2016 and 2018. Credit NASA Earth Observatory image made by Joshua Stevens, using Landsat data from the U.S. Geological Survey. Usage Restrictions With credit 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.