Lake Khanka & Lake St. Clair (IMAGE) Carnegie Institution for Science Caption Lake Khanka (left) on the border between Russia and China and Lake St. Clair (right) on the border between the United States and Canada both showed improvement and then deteriorated in Ho, Michalak, and Pahlevan's study of algal blooms in large lakes. Credit Khanka image made by Norman Kuring, NASA's Ocean Color web, and Lauren Dauphin. St. Clair image courtesy of NASA Earth Observatory 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.