Algal blooms in Lake Erie (IMAGE) American Geophysical Union Caption Human activities and climate change have made nearly half of the world’s lakes less resilient, decreasing their ability to bounce back from sudden disturbances like heat waves and floods, according to a new Geophysical Research Letters study. Credit USGS/Landsat edited by Stuart Rankin Usage Restrictions No restrictions. License CC0 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.